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During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by:

  1. A
    Cytochrome
  2. B
    Leghaemoglobin
  3. C
    Xanthophyll
  4. D
    Carotene

Solution & Step-by-step Explanation

Leghaemoglobin acts as an oxygen scavenger, maintaining low oxygen levels in root nodules to protect the oxygen-sensitive nitrogenase enzyme.

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During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by:
A
Cytochrome
B
Leghaemoglobin
C
Xanthophyll
D
Carotene

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