Question

Function of leghaemoglobin (a red pigment) in root nodules of leguminous plants is:

• A. To regulate $O_2$ supply in cells.
• B. To regulate $C{O}_2$ supply in cells.
• C. To regulate production of phenolic compounds.
• D. To regulate the Mo supply in cells.

Answer 1

The correct option is A To regulate $O_2$ supply in cells.

Leghemoglobin supports the centralization of free oxygen in the cytoplasm of contaminated plant cells to guarantee the best possible capacity of root knobs.

Its capacity is to help give oxygen to the breathing harmonious bacterial cells in root nodules of leguminous plants in a way practically equivalent to hemoglobin transporting oxygen to breathing tissues in creatures.

Thus, the correct answer is option A- 'to regulate O${}_2$ supply in cells.'