NEET Biology question

Which of the following statements about Rhizobium's nitrogen-fixing ability is CORRECT?

(A)Rhizobium can fix atmospheric nitrogen only when associated symbiotically with legume root nodulesCorrect
(B)Rhizobium fixes nitrogen equally well whether free-living in soil or inside root nodules
(C)Rhizobium fixes nitrogen only in the leaves of host plants
(D)Rhizobium does not require the nitrogenase enzyme at all

Answer: (A)

Solution

Rhizobium is a symbiotic nitrogen fixer; it can only carry out nitrogen fixation effectively when associated with the root nodules of leguminous

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Question ID VK-124411