Write the role of nitrogenase enzyme in nitrogen fixation?

Explanation

Fixation of atmospheric nitrogen : Nitrogen fixation process requires Nitrogenase enzyme complex, Minerals `(Mo, Fe and S)`, anaerobic condition, ATP, electron and glucose 6 phosphate as `H^(+)` donor. Nitrogenase enzyme is active only in anaerobic condition. To create this anaerobic condition a pigment known as leghaemoglobin is synthesized in the nodules which acts as oxygen scavenger and removes the oxygen. Nitrogen fixing bacteria in root nodules appears pinkish due to the presence of this leghaemoglobin pigment.
Overall equation: `N_(2)+8e^(-)+8H^(+)+16ATPrarr 2NH_(3)^(+)+H_(2)+16ADP+16"Pi"`