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NEET Biology Mineral Nutrition In Plants Question Bank Micro Nutrients

  • question_answer
    Which one of the following elements plays an important role in biological nitrogen fixation [BHU 1985; CBSE PMT 1995; AIEEE 2004]

    A) Molybdenum

    B) Manganese

    C) Copper

    D) Zinc

    Correct Answer: A

    Solution :

    Molybdenum is required for nitrogen fixation. Nitrate metabolism depends upon enzyme nitrate reductase. It is an activator of nitrate reductase. Therefore, the element is important for nitrogen fixation.


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