LIFE SCIENCE

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: -Carbon dioxide and oxygen cannot pass through the cuticle, but move in and out of leaves through openings called stomata (stoma = “hole"). Guard cells control the opening and closing of stomata. When stomata are open to allow gases to cross the leaf surface, the plant loses water vapor to the atmosphere.

Detailed explanation-3: -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-4: -Stomata open to take in carbon dioxide, and during that process, oxygen gas is released out as waste. When the weather is sunny and hot, the stomata are more likely to open to let carbon dioxide in for more photosynthesis, while oxygen will also escape.