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The water vap...

Question

The water vapour leaves and carbon dioxide enters a leaf through the ___.

A

stomata

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B

grana

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C

porphyrin rings

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D

photons

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Solution

The correct option is A
stomata

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.

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