Question

In root nodules of legumes, leghaemoglobin is important because it:-

• A. Acts as a catalyst in transamination
• B. Transports oxygen to the root nodule
• C. Provide energy to the nitrogen fixing bacteria
• D. Acts as an oxygen scavenger

Answer 1

Answer: (B)

Transports oxygen to the root nodule

• Leghaemoglobin(also leghemoglobin or legoglobin) is an oxygen carrier and hemoprotein found in the nitrogen-fixing root nodules of leguminous plants.
• Leghaemoglobin buffers the concentration of free oxygen in the cytoplasm of infected plant cells to ensure the proper function of root nodules.

So, the correct answer is "transports oxygen to the root nodule".