DENDROLOGY

TREE PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The role of the stomata in leaves is to:
A
Allow gases to enter and exit the leaf
B
Conserve water by closing during times when too much water can transpire
C
Open when it rains so water can be taken in
D
A and B only
E
A and C only
Explanation: 

Detailed explanation-1: -Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.

Detailed explanation-2: -Stomata allow a plant to take in carbon dioxide, which is needed for photosynthesis. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.

Detailed explanation-3: -Helps the plant breathe: The epidermis of the leaf contains guard cells that control and regulate the small pores on the undersurface of the leaves. These pores are called stomata. Stomata are responsible for regulating water in and out of the cell. It is also responsible for the exchange of gases across the epidermis.

Detailed explanation-4: -Stomata (singular, “stoma”) are tiny pores through which plants breathe. Stomata are found on the upper and lower sides of leaves, on flower petals, on stems, and on roots.

Detailed explanation-5: -Its prime function is to exchange the gases by closing and opening the pores in the leaves. It assists in eradicating excess water from the leaves. It removes oxygen and takes in carbon dioxide at the time of photosynthesis. It assists in monitoring the movement of water via transpiration.

There is 1 question to complete.