Q. Assertion : The enzyme nitrogenase is a Mo-Fe protein and catalyses the conversion of atmospheric nitrogen to ammonia.
Reason : The enzyme nitrogenase is highly sensitive to the molecular oxygen.

 1659  212 Mineral Nutrition Report Error

Solution:

The enzyme nitrogenase is a Mo-Fe protein and catalyses the conversion of atmospheric nitrogen to ammonia, which is the first stable product of nitrogen fixation. The enzyme nitrogenase is highly sensitive to the molecular oxygen; it requires anaerobic conditions. The nodules have adaptations that ensure that the enzyme is protected from oxygen.