AP BIOLOGY

Detailed explanation-1: -In plants, water enters the root cells by osmosis and moves into tubes called xylem vessels to be transported to the leaves. Water molecules inside the xylem cells are strongly attracted to each other because of hydrogen bonding (this is called cohesion).

Detailed explanation-2: -Osmosis provides the primary means by which water is transported into and out of cells. The turgor pressure of a cell is largely maintained by osmosis across the cell membrane between the cell interior and its relatively hypotonic environment.

Detailed explanation-3: -The correct option is A True. Transpiration: It is a biological process of water loss in the form of water vapor from the stomatal openings on the aerial parts of the plant. It does not occur at night because the stomata remain closed during the night.

Detailed explanation-4: -Any water gained by osmosis may help keep a plant cell rigid or turgid. The turgor pressure that develops against the cell walls as a result of water entering the cell’s vacuole. This pressure is also referred to as the pressure potential.

Detailed explanation-5: -Osmosis is the movement of solvent molecules across a semi-permeable membrane due to solute concentrations on either side of that membrane. In order for plants to remain healthy and thrive, osmosis is a necessary process.