DENDROLOGY

TREE PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does carbon dioxide get into the leaves of a plant?
A
It’s absorbed by the roots
B
It’s made in a chemical reaction in the stem
C
It enters through the stomata
D
It goes through the flowers
Explanation: 

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 It moves by diffusion through small holes in the underside of the leaf called stomata. Guard cells control the size of the stomata so that the leaf does not lose too much water in hot, windy or dry conditions. The lower part of the leaf is a spongy layer with loose-fitting cells.

Detailed explanation-3: -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-4: -Plants absorb carbon dioxide through small openings called stomata that are on the surface of the leaf. If we zoom in on a plant leaf, so close that we can see the cells, we’ll find tiny openings called stomata. Stomata are holes made from spaces between special cells.

There is 1 question to complete.