AP BIOLOGY

Detailed explanation-1: -In hypotonic solutions, there is a net movement of water from the solution into the body. A cell placed into a hypotonic solution will swell and expand until it eventually burst through a process known as cytolysis.

Detailed explanation-2: -If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.

Detailed explanation-3: -water potential is lower. A hypertonic solution has lower water potential. A hypotonic solution has higher water potential.

Detailed explanation-4: -The term ‘hypotonic’ is where a solution has a higher water potential value than the cells-it has a lower concentration of solutes. Water will therefore diffuse into cells via osmosis. This causes the cells to swell and if they swell too much they can burst-cytolysis.

Detailed explanation-5: -A hypertonic solution has increased solute, and a net movement of water outside causing the cell to shrink. A hypotonic solution has decreased solute concentration, and a net movement of water inside the cell, causing swelling or breakage.