Q. For its action, nitrogenase requires :
A) High input of energy
B) Light
C) Mn²⁺
D) Superoxide radicals
Explanation
[Solution from source] Nitrogenase needs a large energy input, about 16 ATP for each N₂ reduced to ammonia, and it works only in the absence of oxygen. It does not need light, and oxygen radicals inactivate it. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.