Q. The function of leghaemoglobin in the root nodules of legumes is
A) Expression of nif gene
B) Inhibition of nitrogenase activity
C) Oxygen removal
D) Nodule differentiation
Explanation
[Solution from source] Nitrogenase works only without oxygen, and leghaemoglobin in legume root nodules binds oxygen, acting as an oxygen scavenger that protects the enzyme. It does not inhibit nitrogenase or control nif gene expression. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.