DENDROLOGY

TREE IDENTIFICATION

PARTS OF A TREE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The leaf structure that allows carbon dioxide to enter the leaf and Oxygen to exit the leaf is ____
A
phloem
B
stomata
C
vein
D
stem
Explanation: 

Detailed explanation-1: -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-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: -Stomata (noun, “STO-mah-tah”, singular “stoma”) These are the small pores in plant stems or leaves that allow carbon dioxide in and oxygen and water vapor out.

Detailed explanation-4: -Stomata are small pores present on green leaves of plants which are responsible for the exchange of oxygen and carbon dioxide. The gas exchange that occurs when stomata are open helps in photosynthesis.

Detailed explanation-5: -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.

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