Leghemoglobin is responsible for:

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(C) The enzyme nitrogenase,which is essential for biological nitrogen fixation,is highly sensitive to molecular oxygen $(O_2)$.Leghemoglobin is a red-

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Protecting the nitrogenase enzyme from the side effects of $O_2$.

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(C) The enzyme nitrogenase,which is essential for biological nitrogen fixation,is highly sensitive to molecular oxygen $(O_2)$.Leghemoglobin is a red-colored pigment found in the root nodules of leguminous plants.It acts as an oxygen scavenger,binding to $O_2$ and maintaining a low oxygen concentration in the nodule environment.This protection is crucial because it prevents the inactivation of the nitrogenase enzyme by $O_2$,thereby allowing the process of nitrogen fixation to occur efficiently.

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