AP BIOLOGY

Detailed explanation-1: -Leaf stomata are the primary sites of transpiration and consist of two guard cells that form a small pore on the surfaces of leaves. The guard cells control the opening and closing of the stomata in response to various environmental stimuli and can regulate the rate of transpiration to reduce water loss.

Detailed explanation-2: -Transpiration occurs through the stomatal apertures, and can be thought of as a necessary “cost” associated with the opening of the stomata to allow the diffusion of carbon dioxide gas from the air for photosynthesis.

Detailed explanation-3: -From the above paragraphs we can conclude that the rate of transpiration is more on the lower surface of the leaf than the upper surface. This is due to the presence of more stomata on the lower surface than the upper surface.

Detailed explanation-4: -Answer and Explanation: The part of the leaf that enables transpiration is the stomata. The stomata are openings in the leaf that allow for gas exchange with the environment. Plants take in carbon dioxide for photosynthesis and release oxygen.

Detailed explanation-5: -When the stomata open, a little bit of the leaf’s water “falls out, ” and is released as water vapor. This release is called transpiration, and it’s a little bit like humans sweating. Transpiration releases water vapor, the gas form of water, into the air.