AP BIOLOGY

Detailed explanation-1: -The absorbed water is passed to different parts of the plant through the roots and used to carry out distinct functions. Water, sunlight, and carbon dioxide are the essential components of photosynthesis. Thus, photosynthesis is carried out only in the presence of water, which is absorbed by the roots in plants.

Detailed explanation-2: -The bulk of water uptake by most plants is via the roots. That said, high humidity does decrease the rate at which water is lost from the plant, and so will decrease the uptake of water from the soil.

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: -Trees make their own food through photosynthesis, using energy from sunlight, water (from the roots), and carbon dioxide (from the air) to create sugar that is used to fuel the rest of the tree. Water is carried from the roots to the leaves through xylem cells.

Detailed explanation-5: -The process During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons.