A) nitrogenase
B) nitrate reductase
C) nitrite reductase
D) amminase
Correct Answer: A
Solution :
The enzyme nitrogenase reduces molecular nitrogen to ammonia in the root nodule of leguminous plant. Nitrogenase is a complex system, consisting of two major protein components, a MoFe protein joined with one or two Fe proteins The MoFe protein contains two atoms of molybdenum and 28 to 32 atoms of iron, the Fe protein has 4 iron atoms.
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