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Q.

Among the following, which are the functions of petiole?

A. Attaching the leaf to the node

B. Holding the lamina to light

C . Making the leaf blade flutter to bring fresh air on to the lamina and cooling the lamina.

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a

A, B and C

b

B and C

c

A and B

d

A and C

answer is B.

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Detailed Solution

The petiole helps in holding the lamina towards sunlight. If it is flexible, it makes the lamina flutter to bring the fresh air on to the leaf blade and cooling the leaf. 

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