Function of Cell Structures
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Created by:
chuckles80 on September 21, 2011
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19 terms
Terms | Definitions |
|---|---|
 Plasma Membrane | controls movement of substances inot and out of the cell |
| Microvilli | Folds of theplasma membrane that increase the surface area of the cell to increase absorption or secretion |
| Nuclues | Contains DNA molecules and nucleolus |
| Nucleolus | Assembly site for ribosomes |
| Chromatin | Long thin strands within nucleus. Each strand composed of one DNA molecule and associated proteins |
| Cytoplasm | area of the cell that includes the cytosol and organelles |
| Cytosol | fluid portion of cytoplasm that surrounds organelles |
| Mitochondria | Makes ATP Via aerobic cellular respiration |
| Ribosomes | Site of protein synthesis |
| RER | Processes and transports proteins made at attached ribosomes; synthesizes phospholipids |
| SER | fatty acid and steroid synthesis; detoxifies toxic substances |
| Golgi complex | Receives and modifies proteins form RER; sorts and transports them |
| Secretory vesicles | Secret substances outside the cell by exocytosis |
| Lysosomes | Enzymes digest and recycle worn out organelles and substances entering the cell; can digest the cell |
| Peroxisomes | Produce hydrogen peroxide; detoxify harmful substances |
| Cytoskeleton | Three kinds of protein filaments; maintain cell shape and involved in cell movement and movement of organelles |
| Centrosomes (centrioles) | form mitotic spindle; needed to form cilia and flagella |
| Cilia | abundant, hair-like cell projections that move fluids and particles along the cell surface |
| Flagella | long cell projection; whip-like motion moves sperm |
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