Question

Roots associated with nitrogen fixing bacteria are

• A. Fusiform root
• B. Napiform root
• C. Nodulated root
• D. Conical root

Answer 1

The correct option is C Nodulated root

Root nodules occur on the roots of plants that associate with symbiotic nitrogen-fixing bacteria. Certain plants form a symbiotic relationship with a Rhizobia when there is less nitrogen in soil. Within root nodules, nitrogen gas from the atmosphere is converted into ammonia and is then used by plant. These organisms are used when nitrogen fertilizer is reduced.
Thus, the correct answer is option C.