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1.3A Cell membrane
Cell membrane structure
| Term | Definition |
|---|---|
| carrier protein | protein molecule that combines with a substance and transport it through the plasma membrane. |
| channel protein | forms a channel to allow a particular molecule or ion to cross the plasma membrane |
| receptor protein | located at the plasma membrane; binds to a substance that alters some metabolic aspect of the cell |
| fluid-mosaic model | model for the plasma membrane based n the changing location and pattern of protein molecules in a fluid phospholipid bilayer. |
| glycolipids | lipid in plasma membranes that bears a carbohydrate chain attached to a hydrophobic tail |
| glycoproteins | protein in the plasma membrane that bears a carbohydrate chain |
| phosphlipids | molecule that forms a bilayer of the cell's membranes; has a polar, hydrophyillic head bonded to two non-polar, hydrophobic tails |
| selectively permeable | some substances can move freely across the membrane and some cannot. |