AP BIOLOGY

Detailed explanation-1: -(a) Osmosis: A plant cell, when placed in a hypotonic solution, it receives water by osmosis. It does not burst because it is surrounded by a rigid cell wall that can withstand the turgor pressure of the turgid cell contents.

Detailed explanation-2: -A plant cell that is placed in a hypotonic solution would cause the water to move into the cell by osmosis. The resulting influx of water leads to a large turgor pressure being exerted against the plant cell wall. This makes the cell turgid.

Detailed explanation-3: -Complete answer: Osmotic pressure (OP) is responsible for maintaining the turgidity of the guard cells.

Detailed explanation-4: -If a plant cell is surrounded by a solution that contains a higher concentration of water molecules than the solution inside the cell, water will enter the cell by osmosis and the plant cell will become turgid (firm).

Detailed explanation-5: -Animal cells tend to do best in an isotonic environment, plant cells tend to do best in a hypotonic environment.