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Railways General Science & Technology Plant Physiology Sample Paper Plant Physiology Sample Test Paper-28

  • question_answer
    Which pigment is essential for nitrogen fixation by leguminous plants?

    A)  Phycocyanin    

    B)  Leghaemoglobin

    C)  Phycoerythrin

    D)  Myoglobin

    Correct Answer: B

    Solution :

    [b] Leghaemoglobin is an oxygen scavenger. The enzyme that catalyses the fixation of nitrogen functions under anaerobic conditions. Leghaemoglobin combines with oxygen and protects Nitrogenase.


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