With regard to the Biological Nitrogen Fixation by Rhizobium in association with soybean, one of the following statements/ statements does not hold true.
(a) Nitrogenase may require oxygen for its functioning.
(b) Nitrogenase is Mo- Fe protein
(c) Leg-hemoglobin is a pink-coloured pigment.
(d) Nitrogenase helps to convert N2 gas into two molecules of ammonia.
The answer is the option (a) Nitrogenase may require oxygen for its functioning
Nitrogenase is highly sensitive to oxygen. If exposed to oxygen, it makes the enzyme inactive. Therefore, nitrogenase does not require oxygen for its functioning.