Biology
Grade-10
Easy
Question
What is the component II of nitrogenase enzyme complex?
- MoFe protein
- Nitrogenase reductase
- Nitrogenase oxidase
- None of the above
Hint:
Component II of the nitrogenase enzyme complex is nitrogenase reductase. It is a smaller molecule and is designated the Fe protein. Both molecules contain sulfur and neither is active without the other.
The correct answer is: Nitrogenase reductase
- The enzyme complex nitrogenase consists of two proteins, a molybdenum iron protein (Protein 1) that binds N2 (dinitrogenase reductase) and a smaller iron protein (Protein 2) that acts as an electron donor to Protein 1 (nitrogenase reductase), although alternative nitrogenases that contain vanadium or only iron.
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