13. Which of the following types of transport occur across the a. glucose unipor

Question

13. Which of the following types of transport occur across the a. glucose uniport b. O2 and CO2 passive diffusion c. aquaporin water transport d. CI- bicarbonate ion antiport e. All of the above are correct. erythrocyte membrane? e the procedure you are using to modify plants requires their cell membranes to be away from the cell walls by plasmolysis, you place the cells in a a. isotonic solution. hypertonic solution. c. hypotonic solution. d. acidic solution. e. basic solution. 15. One way in which glucose are specifically transported into the cell is via a. gated channels b. ABC transporters. c. aquaporin. d. simple diffusion. e. none of the above. 6. Phosphory lation of glucose following its transport into a cell maintains a higher level of glucose outside the cell. targets the glucose for transport back out of the cell. decreases glucose transport into the cell by decreasing its concentration gradient across the plasma membrane. increases glucose transport into the cell by increasing its concentration gradient across the membrane. converts glucose into a form that can more easily be exported from the cell. . Which of the following is a characteristic of facilitated diffusion (passive transport) of a across a membrane? The direction of transport is against concentration and/or electrochemical gradients. The rate of transport is fixed. It is highly specific. Its rate is lower than that of simple diffusion of the molecule. All of the above are true.

Explanation / Answer

13) e) All of the above are correct

RBC's involve in systemic delivery of O2 from lung to tissue and removal of CO2 from tissue to lung. Membrane transporter AE1 involve in Cl-/HCO3- exchange. Other major membrane transporters involve giucose uniports and aquaporins

14) b) Hypertonic solution

Plasmolysis is a process in which cells lose water in a hypertonic solution.

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