Question

An isotonic solution a. contains the same concentration of solute particles as a cell. b. has water entering and leaving a cell in equal amounts. c. has the same osmotic pressure as the cells in the solution. d. all of the above

Answer 1

An isotonic solution is characterized by having the same concentration of solute particles as a cell, equal water exchange with the cell, and the same osmotic pressure as the cell, thus the correct answer is (d) all of the above.

Step-by-step explanation:

When comparing the options provided, the correct answer is (d) all of the above. This is because, in an isotonic environment, the extracellular fluid has the same osmolarity as the cell which results in no net movement of water into or out of the cell. Water molecules move in and out of the cell at equal rates, maintaining the cell's normal volume and shape.