AP BIOLOGY

Detailed explanation-1: -Water and solutes are transported by the xylem from the roots to the leaves, and food is transported from the leaves to the rest of the plant by the phloem. The process by which water evaporates from the leaves and draws more water from the roots is called ‘transpiration’.

Detailed explanation-2: -Transpiration helps in the movement of water molecules from the roots to the upper part of the plants. The removal of water molecules generates a transpiration pull in the xylem tissue allowing the water to move upward.

Detailed explanation-3: -The transpiration rate is directly proportional to the absorption of water by the roots from the soil. A decrease in water absorption causes the closure of stomata and wilting, thereby reducing the rate of transpiration.

Detailed explanation-4: -The two primary vascular tissues are xylem, which transports water and dissolved minerals from the roots to the leaves, and phloem, which conducts food from the leaves to all parts of the plant.

Detailed explanation-5: -Transpiration results in transpiration pull which thereby increases the rate of absorption of water along with minerals from the soil through roots. Transpiration helps in transportation of absorbed minerals to all the parts of the plant. Transpiration provides water for the process of photosynthesis.