The function of leghemoglobin in root nodules is to
A) bind oxygen.
B) chelate iron.
C) produce iron.
D) produce nitrogen.

Question

Quizplus · Accepted Answer

Leghemoglobin, which is present in root nodules of leguminous plants, binds oxygen and provides a low oxygen environment for the nitrogen-fixing bacteria. This is essential for the nitrogenase enzyme to work properly and reduce atmospheric nitrogen to ammonia. Option B and C are incorrect as leghemoglobin does not chelate or produce iron. Option D is incorrect as leghemoglobin is not involved in the production of nitrogen; this is the role of the nitrogen-fixing bacteria.

The Function of Leghemoglobin in Root Nodules Is to