What happens if you place human red blood cells in a concentrated salt solution
a. they shrink as water moves from inside to outside the cells as a result of osmosis
b. they burst as one to move from outside to inside the cells as a result of osmosis
c. no change occurs as water freely diffuses back-and-forth across the cells membrane
d. desales expand energy pumping water out in response to the great external salt concentration

The correct answer would be a. They shrink as water moves from inside to outside the cells as a result of osmosis.

Osmosis refers to the movement of water from the region of high solvent or water concentration to the region of low solvent or water concentration.

In this condition, the concentration of water in a concentrated salt (hypertonic) solution would be less as compared to that of a red blood cell.

Thus, the water from inside the cell will move outside the cell. Consequently, the cell would shrink in size.

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