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Transpiration

The loss of w...

Question

The loss of water in the form of water vapour through the stomata of leaves is known as___.

A

Cuticular transpiration

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B

Stomatal transpiration

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C

Areolar transpiration

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D

None of the above

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Solution

The correct option is B
Stomatal transpiration

The loss of water in the form of water vapour through the stomata of leaves is known as stomatal transpiration. Stomata are pores in the leaves through which the exchange of water vapour, carbon dioxide and oxygen takes place. When stomata are open the transpiration rate increases and when they are closed the transpiration rate decreases.

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Q. Case: Transpiration is the evaporative loss of water by plants. It occurs mainly through the stomata in the leaves. Besides the loss of water vapour in transpiration, exchange of oxygen and carbon dioxide in the leaf also occurs through pores called stomata. Normally stomata remain open during the day and close at night.

Based on the above case answer the following question:

Which of the following is not a purpose of transpiration?

Q. Case: Transpiration is the evaporative loss of water by plants. It occurs mainly through the stomata in the leaves. Besides the loss of water vapour in transpiration, exchange of oxygen and carbon dioxide in the leaf also occurs through pores called stomata. Normally stomata remain open during the day and close at night.

Based on the above case answer the following question:

Which of the following statements is not true for stomatal apparatus?

Q. Case: Transpiration is the evaporative loss of water by plants. It occurs mainly through the stomata in the leaves. Besides the loss of water vapour in transpiration, exchange of oxygen and carbon dioxide in the leaf also occurs through pores called stomata. Normally stomata remain open during the day and close at night.

Based on the above case answer the following question:

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of the following options.

Q. The loss of water through the stomata of leaves is called

(a) wilting
(b) translocation
(c) transpiration
(d) transportation

Q. The path of water in stomatal transpiration is

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