NEET AIPMT SOLVED PAPER MAINS 2012

  • question_answer
    For its action, nitrogenase requires                         

    A)  high input of energy

    B)  light

    C) \[\text{M}{{\text{n}}^{\text{2+}}}\]

    D)  super oxygen radicals

    Correct Answer: A

    Solution :

    The enzyme nitrogenase is a Mo-Fe protein and catalyses the conversion of atmospheric \[{{\text{N}}_{2}}\] to \[\text{N}{{\text{H}}_{3}}\] as \[{{N}_{2}}+8{{e}^{-}}+8{{H}^{+}}+16ATP\xrightarrow[{}]{{}}2N{{H}_{3}}+{{H}_{2}}\]\[+16ADP+16{{P}_{1}}\] Enzyme nitrogenase functions under anaerobic condition and the pigment leghaemoglobin protect it from oxygen.


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