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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Botany
Chapter
Mineral Nutrition

NTA Abhyas 2020 · Botany · Mineral Nutrition

One of the free-living, anaerobic nitrogen-fixer is:

One of the free-living, anaerobic nitrogen-fixer is:

Options

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

Correct answer

B. Rhodospirillum

Step-by-step solution

Rhodospirillum is a free-living, anaerobic nitrogen fixer bacteria. It can synthesize its food in presence of light under anaerobic condition. Beijernickia and Azotobacter are free living aerobic nitrogen fixing bacteria. Rhizobium is a symbiotic nitrogen fixing bacteria.
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