Question

in the blood and 10% nacl solution, what happened to the cells to cause them to shrink?
a. due to the hypotonic solution, water left the cells.
b. due to the hypertonic solution, water entered the cells.
c. due to the isotonic solution, water left the cell.
d. due to the hypertonic solution, water left the cells.

in the blood and 0.9% nacl solution, what happened to the cells since there seems to be no change?
a. since the solution is isotonic, there was no net movement of water.
b. the hypotonic environment did not allow water to move into or out of the cells.
c. the hypertonic environment did not allow water to move into or out of the cells.

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Explanation:

1. For the first question, a 10% NaCl solution is hypertonic compared to the blood - water moves from an area of lower solute concentration (inside the cell) to an area of higher solute concentration (the 10% NaCl solution), causing cells to shrink.
2. For the second question, a 0.9% NaCl solution is isotonic to blood, so there is no net movement of water across the cell membrane.

Answer:

1. D. Due to the hypertonic solution, water left the cells.
2. A. Since the solution is isotonic, there was no net movement of water.