front 1 Which of the following statements about a typical plasma membrane is correct?
| back 1 The two sides of the plasma membrane have different lipid and protein composition. |
front 2 The permeability of a biological membrane to a specific polar solute depends primarily on which of the following?
| back 2 the types of transport proteins in the membrane |
front 3 The presence of aquaporins (proteins that form water channels in the membrane) should speed up the process of osmosis.
| back 3 True |
front 4 In facilitated diffusion, transport proteins provide a hydrophobic route for the solute to cross the membrane.
| back 4 False Ex. Actually should be, "In facilitated diffusion, transport proteins provide a hydrophillic route for the solute to cross the membrane." |
front 5 The movement of glucose into a cell against a concentration gradient is most likely to be accomplished by which of the following?
| back 5 cotransport of the glucose with a proton or sodium ion that was pumped across the membrane using the energy of ATP hydrolysis |