AP BIOLOGY

Detailed explanation-1: -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-2: -Animal cells tend to do best in an isotonic environment, plant cells tend to do best in a hypotonic environment.

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: -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-5: -An animal cell in a hypertonic solution will shrivel up and eventually die. A plant cell placed in a hypertonic solution will shrink, and plasmolysize, however the plant is able to recover from this solution once it’s returned to a isotonic or hypotonic solution.