Question

Why is leg haemoglobin referred to as oxygen scavenger?

Answer 1

the nodule contains all the necessary biochemical components such as the enzyme nitrogenase and leghaemoglobin. the enzyme nitrogenase is highly sensitive to the molecular oxygen. it requires anaerobic conditions. the nodules have adaptations that ensure that the enzyme is protected from oxygen. to protect these enzymes, the nodules contains an oxygen scavenger called leghaemoglobin.