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Question

Assertion (A): Higher plants can not utilize nitrogen that is present in the form of N2 in air.

Reason (R): In higher plants, the nitrogenase enzyme is absent.



A

Both A & R are true and R explains A

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B

Both A & R are true and R does not explain A

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C

A is true and R is False

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D

Both A & R false

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Solution

The correct option is A

Both A & R are true and R explains A


Nitrogenase can only break N ≅ N bond and it is absent in higher plants, hence they cannot utilize N2 present in the air.


Biology

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