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Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

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Transport of Molecules
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Page 1: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Transport of Molecules

Page 2: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

concentration

Where is there a higher concentration of yellow dots?A B

Page 3: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Tendency for molecules to move from an area of high concentration to an area of low concentration.

A B

DIFFUSION

Page 4: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Transport of Molecules

WHAT IS HAPPENING - EXPLAIN THIS TO THE PERSON SITTING NEXT TO YOU…

Page 5: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Tendency for molecules to move from an area of high concentration to an area of low concentration.

DIFFUSION

Page 6: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

membranes act as filters.

DIFFUSION through a semi-permeable membrane

Page 7: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

SOLUTESOLUTE

SOLVENTSOLVENT

DIFFUSION through a semi-permeable membrane

particle that dissolves

substance in which another substance is dissolved

Page 8: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Tendency for

to move from an an area of high area of high concentrationconcentration to a an area of low an area of low concentrationconcentration solution

DIFFUSION through a semipermeable membrane

moleculesmolecules

Page 9: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

IODINE + STARCH ->

PURPLE

Page 10: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Tendency for

to move from hypertonichypertonic solution to a hypotonichypotonic solution

DIFFUSION through a semipermeable membrane

moleculesmolecules

Page 11: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Hypertonic = HIGH solute concentrationcompared to “X” sideHypotonic = low solute concentration compared to “X” side

Page 12: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

outside

Page 13: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

WE HAVE BEEN MOVING SOLUTE MOLECULES…..

What is

next?

Moving the SOLVENT

Page 14: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Tendency for

to move from ?????? solution to a ?????? solution

OSMOSIS through a semipermeable membrane

WATERWATER

Page 15: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Tendency for WATER MOLECULES to move from hypotonichypotonic solution to a hypertonichypertonic solution

osmosis

Page 16: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

DIFFUSION

OSMOSIS

Page 17: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.
Page 18: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

think of passive transportpassive transport like going down a slide…

Page 19: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

think of facilitated diffusion like going down a slide… with help of proteins

going from HIGH to low requires no energy…

It just

goes!

Page 20: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.
Page 21: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Still PASSIVE…. What is different?

Page 22: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

think of DIFFUSION like going down a slide…

Going from HIGH to low requires no energy…

Page 23: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

What happens in plant cells?What happens in plant cells?

OSMOSIS???

Page 24: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

What happens in plant cells?What happens in plant cells?

Remember, they have a CELL WALL

Page 25: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

What happens in plant cells?What happens in plant cells?

the pressure of the cell contents against the cell wall, in plant cells, determined by the water content of the vacuole

Page 26: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

What happens in plant cells?What happens in plant cells?

the pressure of the cell contents against the cell wall, in plant cells, determined by the water content of the vacuole

Page 27: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Osmosis in cells w/ walls

Isotonic is not good enough!

Page 28: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

TURGID vs. FLACID

Page 29: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

with salt w/ distilled H2O

CELL WALL

CELL MEMBRANE

CELL MEMBRANE

Page 30: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

ISOTONIC

HY

HY

Red Blood Cells

pertonic inside the cell

potonic inside the cell

Page 31: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Are these words dealing with the CELL…. Or the

SOLUTION outside the cell?

Page 32: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.
Page 33: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

NOT NOT PASSIVE!!PASSIVE!!

Page 34: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.
Page 35: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

EndocytosisEndocytosis {Endo (within) cytosis (cell) } is a process in which a substance gains entry into a cell without passing through the cell membrane. This process is subdivided into three different types:

Page 36: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Active Transport = [low] to [high]

ATP

Page 37: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

think of active transport like going up a slide…

Page 38: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

think of active transport like going up a slide…

going from low to HIGH requires a lot of energy…

Page 39: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

think of active transport like going up a slide…

going from low to HIGH requires a lot of energy…

Page 40: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

phagocytosis

Page 41: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Phagocytosis-cell eating

Page 42: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

pinocytosis-cell drinking

Page 43: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

exocytosis-cell vomiting

Page 44: Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

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