DENDROLOGY

Detailed explanation-1: -Leaves possess stomata – tiny pores, for gaseous exchange. The oxygen consumed via stomata is used up by cells in the leaves to disintegrate glucose into water and carbon dioxide.

Detailed explanation-2: -The small pores present on leaves help plants take in carbon dioxide and give out oxygen during the process of photosynthesis. These pores are called stomata.

Detailed explanation-3: -Respiration In Leaves The leaves of plants have tiny pores on their surface which are called stomata. The exchange of gases in the leaves during respiration takes place through stomata. This happens as follows: Oxygen from the air enters into a leaf through stomata and reaches all the cells by the process of diffusion.

Detailed explanation-4: -During the night no photosynthesis takes place but respiration still take place so diffusion of respiratory gases is required. We must understand that stomatas are never completely closed. During night there still remains some space for the diffusion of carbon dioxide and oxygen.