AP BIOLOGY

Detailed explanation-1: -In the case of a red blood cell, isotonic conditions are ideal, and your body has homeostatic (stability-maintaining) systems to ensure these conditions stay constant.

Detailed explanation-2: -The tonicity of a solution is related to its effect on the volume of a cell. Solutions that do not change the volume of a cell are said to be isotonic. A hypotonic solution causes a cell to swell, whereas a hypertonic solution causes a cell to shrink.

Detailed explanation-3: -Animal cells need to be in isotonic solutions to be at homeostasis. Homeostasis is a balance and is important for all living things to maintain. Animal cells lack a cell wall, so too much water coming into the cell will cause it to burst and too much water leaving will cause it to shrink and die.

Detailed explanation-4: -Solutions that contain the same concentration of water and solutes as the cell cytoplasm are called isotonic solutions.