Name the substance that imparts pink colour to the root nodule of a leguminous plant and also mention its role.

Name the substance that imparts pink colour to the root nodule of a le

1.	Name the substance that imparts pink colour to the root nodule of a leguminous plant and also mention its role.
Answer» Leghemoglobin. It is an oxygen scavenger, which protects the enzyme nitrogenase.