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In root nodules of legumes, leghaemoglob...

In root nodules of legumes, leghaemoglobin is important because it

A

It transports oxygen to the root nodule

B

It acts as an oxygen scavenger

C

It provides energy to the nitrogen-fixing bacterium

D

It acts as a catalyst in trans-amination

Text Solution

Verified by Experts

The correct Answer is:
B
The enzyme nitrogenase is required to fix atmospheric nitrogen and it is highly sensitive to molecular oxygen as it functions under anaerobic condition. In order to protect these enzymes, the nodule contains a red or pink coloured pigment called leg hemoglobin. It is an `O_2` scavenger.
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