cell organelles © j beauchemin 2006. cell organelles organelle= “little organ” found only...
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Cell OrganellesCell Organelles OrganelleOrganelle= “little = “little
organ”organ” Found only inside Found only inside
eukaryotic cellseukaryotic cells All the stuff in All the stuff in
between the between the organelles is organelles is cytoplasm.cytoplasm.
Cell MembraneCell Membrane Also known as plasma membraneAlso known as plasma membrane Boundary of the cellBoundary of the cell Made of a phosphoMade of a phospholipidlipid bibilayerlayer
Cytoskeleton & Cytoskeleton & CentrioleCentriole
Acts 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
Aids in cell divisionAids in cell division Usually found only in Usually found only in
animal cellsanimal cells Made of Made of
microtubulesmicrotubules
Endoplasmic Endoplasmic ReticulumReticulum
A.k.a. “ER”A.k.a. “ER” Connected to Connected to
nuclear membranenuclear membrane Highway of the cellHighway of the cell Rough ERRough ER: studded : studded
with ribosomes; it with ribosomes; it makes proteinsmakes proteins
Smooth ERSmooth ER: no : no ribosomes; it makes ribosomes; it makes lipidslipids
RibosomeRibosome Site of protein Site of protein
synthesissynthesis Found attached to Found attached to
rough ER or floating rough ER or floating free in cytoplasmfree in cytoplasm
Produced in a part of Produced in a part of the nucleus called the nucleus called the the nucleolusnucleolus
That looks familiar…what is a That looks familiar…what is a polypeptidepolypeptide??
Golgi ApparatusGolgi Apparatus Looks like a stack of Looks like a stack of
platesplates Stores, modifies Stores, modifies
and packages and packages proteinsproteins
Molecules Molecules transported to and transported to and from the Golgi by from the Golgi by means of means of vesiclesvesicles
LysosomesLysosomes Garbage 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
cell”cell” Cellular respirationCellular respiration
occurs here to release occurs here to release energy for the cell to energy for the cell to useuse
Bound by a double Bound by a double membranemembrane
Has its own strand of Has its own strand of DNADNA
NucleusNucleus Control center of the Control center of the
cellcell Contains Contains DNADNA Surrounded by a Surrounded by a
double membranedouble membrane Usually the easiest Usually the easiest
organelle to see under organelle to see under a microscopea microscope
Usually one per cellUsually one per cell
ChloroplastChloroplast Found only in plant Found only in plant
cellscells Contains the green Contains the green
pigment pigment chlorophyllchlorophyll Site of food (Site of food (glucoseglucose) )
productionproduction Bound by a double Bound by a double
membranemembrane
Cell WallCell Wall Found in Found in plantplant and and
bacterialbacterial cells cells Rigid, protective Rigid, protective
barrierbarrier Located Located outsideoutside of of
the cell membranethe cell membrane Made of cellulose Made of cellulose
((fiberfiber))
VacuolesVacuoles Large Large centralcentral vacuole vacuole
usually in usually in plantplant cells cells Many smaller Many smaller
vacuoles in vacuoles in animalanimal cellscells
Storage container for Storage container for water, food, water, food, enzymesenzymes, , wastes, pigments, etc.wastes, pigments, etc.
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