AP BIOLOGY

Detailed explanation-1: -When placing a red blood cell in any hypertonic solution, there will be a movement of free water out of the cell and into the solution. This movement occurs through osmosis because the cell has more free water than the solution.

Detailed explanation-2: -When placed in a hypertonic solution, a red blood cell will lose water and undergo crenation (shrivel). Animal cells tend to do best in an isotonic environment, where the flow of water in and out of the cell is occurring at equal rates.

Detailed explanation-3: -A hypertonic solution is one that has a higher solute concentration outside the cell than inside. So, water concentration is more inside the cell than the outside. Thus, water will move from the cell to the surrounding. So, RBCs when placed in a hypertonic solution will shrink.

Detailed explanation-4: -Crenation is a process in which red blood cells lose their ability to maintain an isotonic as a result of ionic changes in the blood or abnormalities in the cell membrane, of this disease, develops. Crenated red blood cells are divided into two types: echinocytes and acanthocytes.