NEET BIOLOGY

Detailed explanation-1: -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). Normally stomata open when the light strikes the leaf in the morning and close during the night.

Detailed explanation-2: -The alveoli are the sites of gas exchange; they are located at the terminal regions of the lung and are attached to the respiratory bronchioles. The acinus is the structure in the lung where gas exchange occurs. The sac-like structure of the alveoli increases their surface area.

Detailed explanation-3: -The movement of gases in green plants or the gaseous exchange in plants is called diffusion and it is regulated by the stomata.

Detailed explanation-4: -Stomata, regulated by guard cells, allow gases to pass in and out of the leaf. We may not be able to see them with the naked eye, but the leaves of plants contain tons of tiny holes, or pores, called stomata (sing. stoma).

Detailed explanation-5: -Stomata are the specialized pores or openings present in the epidermis of plant cells, which play a crucial role in gaseous exchange during the process of photosynthesis.