Question:
Which statement is wrong regarding nitrogenase?
Which statement is wrong regarding nitrogenase?
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Match which component carries the molybdenum-iron cofactor.
Updated On: Jul 4, 2026
- Component II is known as Di Nitrogenase Reductase.
- Component I reduces N2 to NH3.
- Component II is the smaller subunit.
- Mo-Fe protein is contained in component II.
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The Correct Option is D
Solution and Explanation
Step 1: The nitrogenase enzyme complex has two components. Component I is the MoFe protein, also called dinitrogenase, and it carries out the actual reduction of N2 to NH3.
Step 2: Component II is the Fe protein, also called dinitrogenase reductase, and it is the smaller of the two subunits, supplying electrons to component I.
Step 3: So options (A), (B) and (C) all match the real roles of the two components. Saying the Mo-Fe protein is in component II is wrong, since Mo-Fe protein is actually component I.
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