What describes a solution that has the same concentration as the cytoplasm of a cell, resulting in no net movement of water?

A solution that has the same concentration as the cytoplasm of a cell is described as isotonic. In an isotonic solution, the concentration of solutes outside the cell is equal to the concentration of solutes inside the cell. This balance results in no net movement of water into or out of the cell, as the rates of osmosis in both directions are equal. Therefore, the cell maintains its shape and volume without experiencing swelling or shrinkage.

This concept is crucial in understanding cellular dynamics, especially in scenarios where cells are exposed to solutions of varying concentrations. An isotonic environment is essential for maintaining homeostasis in cells, allowing them to function optimally without the stress of osmotic pressure changes.