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Transportation of Water: Transpirational Pull

Transpiration...

Question

Transpiration mainly occurs through ___.

A

stem

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B

leaves

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C

roots

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D

branches

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Solution

The correct option is B leaves
Transpiration is a mode of loss of water vapour by plants to the atmosphere. It occurs mainly from the leaves through stomatal pores. These tiny pores, usually present beneath the leaves are the main source of gaseous exchange in plants.

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Q. Transpiration mainly occurs by the process of _____ through stomata.

Q. Transpiration mainly occurs through ___.

Q. Application Based Questions .
Why does transpiration occur mainly through leaves ?

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?

Assertion (A): Transpiration is a biological activity

Reason (R): Transpiration occurs through living tissues of aerial parts of plants

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