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NEET
Exam
NEET
Subject
Zoology
Chapter
Microbes in Human Welfare

NEET · Zoology · Microbes in Human Welfare

What is the role of Rhizobium in biofertilisers?

What is the role of Rhizobium in biofertilisers?

Options

  1. AAbsorbing nitrogen from soil
  2. BPassing nitrogen to plants
  3. CFixing atmospheric nitrogen into organic forms
  4. DIncreasing soil fertility

Correct answer

C. Fixing atmospheric nitrogen into organic forms

Step-by-step solution

Biofertilisers are organisms that enrich the nutrient quality of the soil. The main sources of biofertilisers are bacteria, fungi and cyanobacteria. You have studied about the nodules on the roots of leguminous plants formed by the symbiotic association of Rhizobium. These bacteria fix atmospheric nitrogen into organic forms, which is used by the plant as nutrient.

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