Post on 16-Apr-2017
Cell BiologyPage 16
Size
Extremely smallNeed special lens to see them
Robert Hooke – 1660Invented MicroscopeToday10 to 1,000 times
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Cell TheoryALL living things are made of one or more cells
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Parts of a Cell - ORGANELLES
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Cell WallWho? Plants and some bacteriaFunction: Tough outer shell that protects cell
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Cell Membrane (plasma)Who? All cellFunction: Barrier that separates inside from outside
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Who? All cells except bacteriaFunction: Control center
All information needed for entire organism
Nucleus
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MitochondriaWho? All cells except bacteriaFunction: Energy
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Endoplasmic ReticulumWho? All cells except bacteriaFunction: Protein ModificationsRibosomesWho? All CellsFunction: Make Protein
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Golgi BodiesAll cells except bacteria
Distributes materials
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ChloroplastsWho? Plants OnlyFunction: Capture energy from sun to make food
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VacuoleWho? All Cells except bacteriaFunction: Storage Space
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LysosomeWho? All Cells except bacteriaFunction: Digestion
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Bacteria
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Cells are ten times smallerContains: Cell membrane, DNA, Ribosomes
VirusThey are 10 to 100 times smaller than bacteriaCopy themselves inside of cells only