Name the most crucial enzyme found in root nodules for N2 fixation? Does it require a special pink coloured pigment for its functioning? Elaborate.
Name the most crucial enzyme found in root nodules for N2 fixation? Does it require a special pink coloured pigment for its functioning? Elaborate.

Solution: Nitrogenase is an enzyme found in root nodules that transforms free nitrogen in the air to ammonia or other nitrogenous compounds, which is necessary for N2 fixation. Leghaemoglobin, a pink-colored pigment, is required for its proper functioning.