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Anatomy of Cell
Major Parts,Membrane Structure,Functions
| Question | Answer |
|---|---|
| Major parts of a cell: | Cell membrane, Nucleus,&Cytoplasm |
| Functions of Cell Membrane | Provides permeable barrier around the cell&controls what passes in and out of the cell |
| Membrane Structure | Phospholipid bilayer(hydrophilic/phobic) Membrane proteins(transport channels) Carbohydrate chains(ID tags for the cell) Cholesterol(provides stability for the membrane) |
| Nucleus | Control center of the cell Contains DNA DNA determines function&structure of cells as does heredity |
| Cytoplasm | Between cell membrane&nucleus Contains:Cytosol&Organelles |
| Hydrophobic | Water insoluble "tail" form INFERIOR |
| Hydrophilic | Water soluble "head" form SURFACES |
| Cell Cycle (Cell Division) | The series of events that takes place in a cell leading to its division and duplication |
| 3 Stages of Cell Cycle | Interphase Mitosis Cytokinesis |
| 4 Phases of Cell Cycle | GI-Interphase S- Cell's DNA is copied G2- Nucleus prepares to divide Mitosis-Cell's genetic material divides |
| Mitosis | Division of the nucleus Used by organisms for:growth,repair,replacement&reproduction(grrr) |
| Cytokinesis | division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells |