EVERYDAY SCIENCE

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 through tiny holes in a plant’s leaves, flowers, branches, stems, and roots. Plants also require water to make their food. Depending on the environment, a plant’s access to water will vary.

Detailed explanation-3: -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.