A) nitrogenase
B) nitroreductase
C) transferase
D) transaminase
Correct Answer: A
Solution :
| [A] In the process of biological nitrogen fixation, the dinitrogen molecule is reduced by the addition of pairs of hydrogen in the presence of enzyme nitrogenase. Nitrate reducatase and nitrite reductase come into picture at later stage (for nitrate assimiliation). |
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