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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. |