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NEET 2010
Exam
NEET
Year
2010
Subject
Botany
Chapter
Mineral Nutrition

NEET 2010 · Botany · Mineral Nutrition

The free-living, anaerobic nitrogen-fixer is

The free-living, anaerobic nitrogen-fixer is

Options

  1. ABeijerinckia
  2. BRhodospirillum
  3. CRhizobium
  4. DAzotobacter

Correct answer

B. Rhodospirillum

Step-by-step solution

Rhodospirillum is a free-living, anaerobic, nitrogen fixer. Both Beijerinckia and Azotobacter are free-living, nitrogen-fixing, aerobic microbes. Rhizobium is a symbiotic, nitrogen-fixer.
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