AP BIOLOGY

Detailed explanation-1: -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-2: -Opening and closing of stomata occurs due to turgor changes in guard cells. When guard cells are turgid, stomatal pore is open while in flaccid conditions, the stomatal aperture closes. There are other theories which explains the opening and the closing of the stomatal pore.

Detailed explanation-3: -The opening and closing of stomata are controlled by specialized cells called guard cells. The turgor pressure in the guard cells controls the opening and closing of the guard cells. Stomatal pores open when guard cells enlarge as a result of water absorption and close when guard cells shrink.

Detailed explanation-4: -The parts of a leaf that allows transpiration are the stomata and cuticle.

Detailed explanation-5: -Carbon dioxide and oxygen cannot pass through the cuticle, but move in and out of leaves through openings called stomata (stoma = “hole"). Guard cells control the opening and closing of stomata. When stomata are open to allow gases to cross the leaf surface, the plant loses water vapor to the atmosphere.