AP BIOLOGY

Detailed explanation-1: -When a red blood cell is placed in an isotonic solution, there will be no net movement of water. Both the concentration of solute and water are equal both intracellularly and extracellularly; therefore, there will be no net movement of water towards the solution or the cell.

Detailed explanation-2: -The external solution having the same concentration as that of cell sap is known as an isotonic solution. When cells are in an isotonic solution, the movement of water out of the cell is exactly balanced by the movement of water into the cell.

Detailed explanation-3: -Solutions that contain the same concentration of water and solutes as the cell cytoplasm are called isotonic solutions. Cells placed in an isotonic solution will neither shrink nor swell since there is no net gain or loss of water.

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: -What is the Difference Between Isotonic and Isosmotic? Isotonic refers to a solution having the same solute concentration as in a cell or a body fluid. Isosmotic refers to the situation of two solutions having the same osmotic pressure.