Question

what is your prediction for this experiment? a. red blood cells placed in a hypotonic solution will shrink because osmosis will draw water out of the cells, causing their volume to decrease. b. red blood cells placed in an isotonic solution will shrink because osmosis will draw water out of the cells, causing their volume to decrease. c. red blood cells placed in a hypertonic solution will shrink because osmosis will draw water out of the cells, causing their volume to decrease. what is your strategy? a. i will place red blood cells into solutions with different tonicities, and i will examine the appearance of the cells under a microscope to see if the cells change. b. i will place red blood cells into solutions with different tonicities, and i will measure the volume of the solutions before and after the treatment to see if the amount of solution changes.

Explanation:

For the prediction question, in a hypertonic solution, there is a higher solute - concentration outside the cell compared to inside. Osmosis causes water to move out of the red - blood cells, leading to shrinkage. For the strategy question, examining the cells under a microscope directly shows cell changes due to tonicity differences. Measuring solution volume may not accurately reflect cell - level changes.

Answer:

For the prediction: C. Red blood cells placed in a hypertonic solution will shrink because osmosis will draw water out of the cells, causing their volume to decrease.
For the strategy: A. I will place red blood cells into solutions with different tonicities, and I will examine the appearance of the cells under a microscope to see if the cells change.