Question

a cell with a semi - permeable membrane contains 12% glucose, 6% nacl and 6% albumin. it is suspended in a solution with the following composition: 10% glucose, 15% albumin and 6% nacl. assume the membrane is permeable to all substances except glucose. identify the correct event in the answer blanks. a moves into the cell b moves out of the cell c does not move. 17. glucose 18. albumin 19. nacl

Explanation:

The membrane is impermeable to glucose. The cell has 12% glucose and the solution has 10% glucose, so glucose does not move as it cannot cross the membrane. The cell has 6% albumin and the solution has 15% albumin, so albumin moves into the cell to equalize the concentration. The cell and the solution both have 6% NaCl, so there is no net movement of NaCl as the concentration is the same on both sides.

Answer:

1. C. Does not move
2. A. Moves into the cell
3. C. Does not move