Chp. 3 The Cellular Level of Organization
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Created by:
LianneYoung on February 8, 2010
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16 terms
Terms | Definitions |
|---|---|
 Phospholipid bilayer | The cell membrane that contains other lipids, proteins, and carbohydrates |
| Hydrophobic | freely associating with water; readily entering into solution |
| Hydrophilic | incapable of freely associating with water; insoluble |
| Cholesterol | a steroid component of cell membreanes and substrate for the synthesis of steroid hormones and bile salts |
| Integral protein | part of the membrane |
| Peripheral protein | bound to the inner or outer surface of the membrane and are easily separated from it |
| Anchoring protein | attach the cell membrane to other structures and stabilize its position |
| Recognition protein | A protein or glycoprotein protruding from the outside surface of a plasma membrane that identifies a cell as belonging to a particular species, to a specific individual of that species, and in many cases to one specific organ within the individual. |
| Enzyme | any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions |
| Receptor protein | sensitive to the presence of specific extracellular molecules call ligands |
| Carrier protein | binds solutes and transport them across the cell membrane. |
| Channel protein | a central pore |
| Glycoprotein | A protein covalently attached to a carbohydrate |
| Glycolipid | A lipid covalently attached to a carbohydrate |
| Glycocalyx | the carbohydrate portions of these large molecules extend beyond the outer surface of the membrane |
| Cytoskeleton | functions as the cell's skeleton; has four components; mircrofilaments, intermediate filaments, microtubules, and thick filaments |
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