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Biological Classification question

2010 · Q28
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Biological Classification question

2010 · Q28

NEETBiologyBiological ClassificationMCQ+4 / −1
One of the free-living, anaerobic nitrogen-fixer is
  1. A
    Beijernickia
  2. B
    Rhodospirillum
  3. C
    Rhizobium
  4. D
    Azotobacter.
View written solutionFree

Correct answer: B

Rhodospirillum is a free-living, anaerobic nitrogen fixer bacteria. It can synthesize its food in presence of light under anaerobic conditions.

Beijernickia and Azotobacter are free living aerobic nitrogen fixing bacteria. Rhizobium is a symbiotic nitrogen fixing bacteria.

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