Molybdenum is a component of nitrogenase and:
ANitrate reductase
BNitrate reluctase
CNitrate refractase
DNitrate resistase
Answer & Solution
Correct answer: A. Nitrate reductase
1. Both enzymes work in nitrogen metabolism.
2. One of them is nitrogenase.
3. The other is nitrate reductase.
_Source: NCERT Class 11 Biology, Ch 12 'Mineral Nutrition'_
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