EVERYDAY SCIENCE

Detailed explanation-1: -Conclusion: Carbon dioxide enters the leaves through stomata.

Detailed explanation-2: -Through photosynthesis, they use sunlight and carbon dioxide to make food, belching out the oxygen that we breathe as a byproduct. This evolutionary innovation is so central to plant identity that nearly all land plants use the same pores-called stomata-to take in carbon dioxide and release oxygen.

Detailed explanation-3: -Carbon dioxide (CO₂), oxygen (O₂) and water (H₂0) commonly move in or out via the stomata. While gas exchange occurs, carbon (C) stays inside the leaf as a building block for the plant. Often, stomata are open during the day when photosynthesis is taking place and closed at night when it stops.

Detailed explanation-4: -Stomata and Gas Exchange Each stoma is surrounded by two guard cells, which can open and close depending on environmental conditions. When moisture is plentiful, the guard cells swell with water, forcing the opening of the stoma open and allowing gas exchange to occur.

Detailed explanation-5: -The stomata, or microscopic pores in the leaves, allow carbon dioxide, an ambient gas, to enter the leaf (a stoma is a single pore). Water enters the leaf through stomata when it penetrates directly from the atmosphere. These basic materials make their way into the chloroplasts of the leaf’s spongy and palisade layers.