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

 

  • Option 1)

    Beijernickia

  • Option 2)

    Rhodospirillum

  • Option 3)

    Rhizobium

  • Option 4)

    Azotobacter

 

Answers (1)

 

Asymbiotic Nitrogen Fixing Bacteria -

1. Free-living aerobic bacteria - Azotobacter, Beijerinckia.

2. Free-living chemosynthetic bacteria - Desulfovibrio.

3. Free-living photoautotrophic bacteria - Chlorobium, Rhodopseudomonas.

4. Free-living cyanobacteria - Nostoc, Anabaena.

5. Free-living anaerobic bacteria - Clostridium.

-

 

 


Option 1)

Beijernickia

Incorrect Option

Option 2)

Rhodospirillum

Correct Option

Option 3)

Rhizobium

Incorrect Option

Option 4)

Azotobacter

Incorrect Option

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