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Nitrogenase is an important enzyme for nitrogen metabolism and catalyzes nitrogen fixation. However, it is an oxygen labile enzyme. Which of the follo
Question

Nitrogenase is an important enzyme for nitrogen metabolism and catalyzes nitrogen fixation. However, it is an oxygen labile enzyme. Which of the following protects nitrogenase from oxygen?

A.

Leghemoglobin

B.

Nodulin

C.

Ammonia

D.

ATP

Correct option is A


Leghemoglobin protects nitrogenase from oxygen by binding to free oxygen, thus creating a low-oxygen environment necessary for nitrogen fixation in root nodules.

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