Which of the following does not help in ${N_2}$ fixation?

  • A
    Anabaena
  • B
    Nostoc
  • C
    Oscillatoria
  • D
    Rhizobium

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Similar Questions

The nitrogenase enzyme found in the root nodules of legumes contains:

$N_2$ fixation is

Which of the following are free-living nitrogen-fixing microbes?

Categorize the following nitrogen-fixing microorganisms into symbiotic and free-living types:
$I-$ Rhizobium
$II-$ Azotobacter
$III-$ Beijerinckia
$IV-$ Rhodospirillum
$V-$ Frankia
$VI-$ Bacillus
$VII-$ Anabaena (free-living)
$VIII-$ Nostoc (symbiotic)
Select the correct grouping for (Symbiotic) and (Free-living) respectively.

The free-living anaerobic nitrogen-fixing bacterium is . . . . . . .

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