What protein is most critical for allowing nitrogenase to do its job in a root nodule?

Question

Quizplus · Accepted Answer

Leghemoglobin is the protein that is critical for allowing nitrogenase to do its job in a root nodule. Nitrogenase is the enzyme responsible for converting atmospheric nitrogen into a form that can be used by plants, but it is sensitive to oxygen. Leghemoglobin acts as an oxygen scavenger, binding to oxygen and preventing it from interfering with nitrogen fixation by nitrogenase.

What Protein Is Most Critical for Allowing Nitrogenase to Do