AP BIOLOGY

Detailed explanation-1: -If the external environment of a living cell has a greater concentration of salt than the cytoplasm within the cell, the cell will tend to do what? It will tend to lose water.

Detailed explanation-2: -Answer: a) If a cell contains higher water concentration than the surrounding medium then the cell loses water and it shrinks. This process is called exosmosis.

Detailed explanation-3: -If a cell is placed in a hypotonic solution, there will be a net flow of water into the cell, and the cell will gain volume. If the solute concentration outside the cell is lower than inside the cell, and the solutes cannot cross the membrane, then that solution is hypotonic to the cell.

Detailed explanation-4: -If the medium has exactly the same water concentration as the cell, there will be no net movement of water across the cell membrane.

Detailed explanation-5: -The cell has higher water concentration, which means it has less solute concentration than the surrounding medium. Such, solution is said to be hypertonic. In such a case, the water molecules move from inside to the outside of the cell through the cell membrane.