Q. For nitrogen fixation, useful pigment is
A) Nitrogenase
B) Haemoglobin
C) Myoglobin
D) Leghaemglobin
Explanation
Leghaemoglobin is red, oxygen-binding iron containing protein pigment present in the root nodules. It is useful for nitrogen fixation as it functions as an oxygen buffer and keeps the free oxygen levels within the nodule low.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.