NEET BIOLOGY

Detailed explanation-1: -Leaves. The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma).

Detailed explanation-2: -This evolutionary innovation is so central to plant identity that nearly all land plants use the same pores-called stomata-to take in carbon dioxide and release oxygen.

Detailed explanation-3: -The oxygen that is produced during photosynthesis is released through the stomata present in the leaf. Transpiration process also occurs through these pores present in the leaves.

Detailed explanation-4: -The three major substances that can pass through a plant’s stomata are water, oxygen, and carbon dioxide. Guard cells help regulate the plant’s water loss and can control how much of these substances are able to enter and exit by opening and closing the pore.