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8 Cards in this Set
- Front
- Back
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Robert Hooke
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1665- saw compartments in thin slice of cork called them cells- they were actually cell walls
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Anton van Leeuwenhoek
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1700- developed high powered lenses to see microorganisms- mid 1800's- found cells in every organism they studied
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Cell Theory
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1) All living things are made of cells
2) Cells are the basic unit of structure and function of living things 3) All cells come from pre existing cells |
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Organelle
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"mini organs" each carries out a specific function within the cell
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Plasma Membrane
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structure: phospholipid bilayer and cholesterol
function: boundary for the cell, controls movement of materials into and out of the cells |
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Nucleus
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structure: has own membrane (nuclear envelope) surrounding the cell's *DNA
function: the control center of the cell |
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Cytoplasm
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structure: fluid that fills the region between the plasma between the plasma membrane & the nucleus. Organelles are suspended in it.
function: location of some chemical reaction helps to move materials around in the cell |
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Cell Wall
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structure: only in plant cells, thick, made of cellulose- carbohydrate (polysaccharide)
function: provides protection, maintains shape |
