AP BIOLOGY

Detailed explanation-1: -Just like the process of exchange of gases takes place through the lungs in the animals, the plants have stomata to take out this process. The gas exchange in plants takes place through stomata, and the process is called diffusion. The stomata are found in all the aerial plants and not in the roots.

Detailed explanation-2: -Stomata facilitate not only the uptake of CO2 but also the exchange of all gases between the aerial parts of the plant and the atmosphere. Water vapour and oxygen molecules exit the leaf through the same path as CO2 enters, but usually in the opposite direction (Figure

Detailed explanation-3: -Stomata are mouth-like cellular complexes at the epidermis that regulate gas transfer between plants and atmosphere. In leaves, they typically open during the day to favor CO2 diffusion when light is available for photosynthesis, and close at night to limit transpiration and save water.

Detailed explanation-4: -The exchange of gasses in leaves: In leaves respiration takes place by diffusion of oxygen through stomata into the cells of the leaf from where the carbon dioxide is released into the atmosphere.

Detailed explanation-5: -Small pores present on the surface of leaves which help in exchange of gases are called stomata.