EVERYDAY SCIENCE

Detailed explanation-1: -Typically, stomata are open during the day and closed at night, like some people’s mouths. Many other signals cause stomata to open and close. Open stomata allow carbon dioxide to enter the plant, however, water vapour can escape, so regulation of stomata is crucial for maintaining plant water status.

Detailed explanation-2: -So they take in what you exhaled, they take in carbon dioxide and they give out oxygen. And this is during the day. So during the day they take in carbon dioxide and they release oxygen. And in the night, they behave almost like us.

Detailed explanation-3: -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: -Plants breathe through tiny holes in their leaves called stomata. So, all living things breathe.

Detailed explanation-5: -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.