Post on 22-Apr-2015
description
transcript
MembranesStephen Taylori-Biologynet Photo credit Plasmolysis by MNolf via
httpcommonswikimediaorgwikiFileRhoeo_Discolor_-_Plasmolysisjpg
Pre-assessmentbull What can you label on this diagram bull Can you explain three different methods of transport across a membrane
Plasma Membranebull Label the diagram with components amp functionsbull Identify components that are involved in transport
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Pre-assessmentbull What can you label on this diagram bull Can you explain three different methods of transport across a membrane
Plasma Membranebull Label the diagram with components amp functionsbull Identify components that are involved in transport
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Plasma Membranebull Label the diagram with components amp functionsbull Identify components that are involved in transport
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Plasmolysis in Elodea and in onion cells 1 Set up slides of Elodea cells and onion cells with tap water medium2 Find cells under the microscope Draw and label what you see
Include magnification You might need to try different stains 3 Draw salt solution through the slides Observe and draw the effects 4 Explain the effects of changing the salt concentration on the cells
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Explain passive transport across membranes by simple diffusion amp facilitated diffusion
Simple amp facilitated diffusion are passive bull No energy input is required
There is a net movement of molecules from one side of the membrane to the other bull The motion of molecules is random (Brownian motion)
bull But there is an overall general movement in one direction
This net movement is down the concentration gradient bull From areas of high concentration to low concentration
Movement is across a selectively or partially permeable membraneDependent on size or properties some molecules can cross and not others
Simple DiffusionOccurs when the moleculersquos properties allow them
pass across the membrane
Facilitated DiffusionSome molecules cannot cross easily for example if they are polar the phospholipids of the bilayer will
repel them
The rate of diffusion is affected by bull magnitude of concentration gradient
bull SAVol ratio (more membranes more transport per unit volume)
bull Length of diffusion pathway (longer journey gives slower diffusion)
Channel proteins are integral membrane proteins that pass through the membrane
Their properties allow molecules to pass through (eg polar molecules or ions)
Activation of these channels might be voltage-gated (eg in neurons) or binding-activated
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this To move molecules against the concentration gradient or to create a large concentration gradient across a membrane
Protein pumps These are integral passing through the membrane They are specific ndash only working with the target molecule
What happens 1 Target molecules bind to the pump 2 ATP also binds to the pump ATP is broken releasing energy and causing a
conformational (shape) change in the protein pump 3 This conformational change pushes the molecules across the membrane4 The molecule unbinds and the pump reverts back to the original shape
Examples bull Sodium-potassium pump is used to re-polarise neurons after an action potential ready to fire again
bull Proton pumps in mitochondria generate a high concentration gradient of H+ ions ready for chemiosmosis through ATP synthase used for generating ATP
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Active transport uses energy in the form of ATP to move molecules across a selectively permeable membrane against the concentration gradient using protein pumps
Why do this
Protein pumps
What happens
Examples
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Annotate this diagram to explain vesicle transport amp exocytosis
Animated tutorial httpbcswhfreemancomthelifewire8econtentcat_0400504003html
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
Stephen Taylor httpsciencevideoswordpresscom
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations
For more resources amp links
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4GoodClick here for more information about Biology4Good charity donations