NEET BIOLOGY

Detailed explanation-1: -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-2: -Carbon dioxide enters the leaves through tiny pores present on the surface of the leaves called stomata. Note: Photosynthesis occurs during the day time. Thu stomata are open mostly throughout the day for supplying the carbon dioxide to the plants. Respiration occurs throughout day and night.

Detailed explanation-3: -Carbon dioxide is a gas found in the air; plants can take in this gas through tiny holes in their leaves. Once they have water and carbon dioxide, they can use energy from sunlight to make their food.

Detailed explanation-4: -Stoma (Plural: stomata) is a tiny opening present on the surface of leaves. It has a pore regulated by guard cells and gaseous exchange takes place through it. Carbon dioxide enters the leaf and water vapour and oxygen leave the leaf through this.

Detailed explanation-5: -Conclusion: Carbon dioxide enters the leaves through stomata.