Date post: | 28-Dec-2015 |
Category: |
Documents |
Upload: | shawn-lawson |
View: | 239 times |
Download: | 0 times |
Cell OrganellesCell Organelles
OrganelleOrganelle= = ““little little organorgan””
Found only inside Found only inside eukaryotic cellseukaryotic cells
Cell MembraneCell MembraneBoundary of the cellBoundary of the cell
Selectively permeable – allows only certain substances Selectively permeable – allows only certain substances across!across!
Made of a Made of a phospholipid bilayerphospholipid bilayer, mosaic of lipids, proteins, , mosaic of lipids, proteins, etc.etc.
NucleusNucleusControl center of the Control center of the cellcell
Contains Contains DNADNA
Surrounded by a Surrounded by a double membranedouble membrane
NucleolusNucleolus – located – located within the nucleus, within the nucleus, makes ribosomesmakes ribosomes
CytoskeletonCytoskeletonActs as Acts as skeletonskeleton and and musclemuscle
Provides shape and Provides shape and structurestructure
Helps move Helps move organelles around the organelles around the cellcell
Made of three types of Made of three types of filamentsfilaments
Endoplasmic Endoplasmic ReticulumReticulum
A.K.A. A.K.A. ““ERER””Connected to nuclear Connected to nuclear membranemembraneNetwork of Network of passageways passageways “Highway” of the cell“Highway” of the cellRough ERRough ER: studded with : studded with ribosomes; it makes ribosomes; it makes proteinsproteinsSmooth ERSmooth ER: no : no ribosomes; it makes ribosomes; it makes lipidslipids
RibosomeRibosomeSite of protein Site of protein synthesis synthesis (where (where proteins are made!)proteins are made!)
Found attached to Found attached to rough ER or floating rough ER or floating free in cellfree in cell
Produced in a part of Produced in a part of the nucleus called the the nucleus called the nucleolusnucleolus That looks familiar…what is a That looks familiar…what is a
polypeptidepolypeptide??
Golgi ApparatusGolgi ApparatusLooks like a stack of Looks like a stack of platesplates
Stores, modifies and Stores, modifies and packages proteinspackages proteins
Molecules transported Molecules transported to and from the Golgi to and from the Golgi by means of by means of vesiclesvesicles
LysosomesLysosomesGarbage disposal Garbage disposal of the cellof the cell
Contain digestive Contain digestive enzymes that enzymes that break down break down wasteswastes
MitochondriaMitochondria““Powerhouse of the Powerhouse of the cellcell””Cellular respirationCellular respiration occurs here to release occurs here to release energy for the cell to energy for the cell to useuseBound by a double Bound by a double membranemembraneHas its own strand of Has its own strand of DNADNA
ChloroplastChloroplastFound only in plant Found only in plant cellscells
Contains the green Contains the green pigment pigment chlorophyllchlorophyll
Site of food (Site of food (glucoseglucose) ) production in production in photosynthesisphotosynthesis
Bound by a double Bound by a double membranemembrane
Cell WallCell WallFound in Found in plantplant and and bacterialbacterial cells cells
Rigid, protective Rigid, protective barrierbarrier
Located Located outsideoutside of the of the cell membranecell membrane
Made of cellulose Made of cellulose ((fiberfiber))
VacuolesVacuolesStorage container for Storage container for water, food, water, food, enzymesenzymes, , wastes, pigments, etc.wastes, pigments, etc.
Large Large centralcentral vacuole vacuole usually in usually in plantplant cells cells
Many smaller Many smaller vacuoles in vacuoles in animalanimal cellscells
CentrioleCentriole
Aids in cell divisionAids in cell division
Usually found only in Usually found only in animal cellsanimal cells
Made of microtubulesMade of microtubules
Quick ReviewQuick ReviewWhich organelle is the control center of the cell? Which organelle is the control center of the cell? NucleusNucleus
Which organelle holds the cell together?Which organelle holds the cell together?Cell membraneCell membrane
Which organelles are found in plant cells, but not found Which organelles are found in plant cells, but not found in animal cells?in animal cells?Cell wall, central vacuole, chloroplastsCell wall, central vacuole, chloroplasts
Which organelle helps plant cells make food?Which organelle helps plant cells make food?ChloroplastsChloroplasts
What does E.R. stand for?What does E.R. stand for?Endoplasmic reticulumEndoplasmic reticulum