1.

The nodules present in the leguminous plants appear pink in colour due to the presence ofA. RBCsB. leghaemoglobinC. nitrogenase enzymeD. bacterial secretion.

Answer» Correct Answer - B
The nodule contains a pinkish pigment called Leghaemoglobin (Lb) which is an oxygen scavenger and protects nitrogen fixiing enzyme nitrogenase from oxygen.


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