AP BIOLOGY

Detailed explanation-1: -An isotonic solution has the same solute concentration compared to the intracellular solute concentration. When a red blood cell is placed in an isotonic solution, there will be no net movement of water.

Detailed explanation-2: -If the solute concentrations are equal between the interior of the cell and the surrounding environment, there will be no net gain or loss of water from the cell. Such a situation is called isotonic. And because of the solute concentrations being equal, such isotonic solutions are not useful for food preservation.

Detailed explanation-3: -If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell’s volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.

Detailed explanation-4: -Here water can be called hypotonic solution and salt solution can be called hypertonic solution. The movement occurs to balance concentration and form equilibrium.

Detailed explanation-5: -Hypotonic has a lower concentration of fluid, sugars and salt than blood. Hypertonic has a higher concentration of fluid, sugars and salt than blood. Isotonic has similar concentration of fluid, sugars and salt to blood.