Which bacteria fix atmospheric nitrogen while they are free-living in the soil?

  • A
    Azotobacter
  • B
    Rhizobium
  • C
    Cyanobacteria
  • D
    Anabaena

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Similar Questions

Choose the incorrect pair$(s)$:
$(I)$ Free-living nitrogen-fixing aerobic microbes - Beijerinckia
$(II)$ Rhodospirillum - Aerobic microbes
$(III)$ Bacillus - Free-living
$(IV)$ Cyanobacteria - Anabaena and Azotobacter

Which of the following is a free-living,aerobic,and non-photosynthetic nitrogen-fixing bacterium?

During biological nitrogen fixation,which substance protects the enzyme nitrogenase from the harmful effects of oxygen?

Which cofactor is essential for the activity of the nitrogenase enzyme?

The process of nitrogen fixation by $Rhizobium$ is stimulated by the presence of which of the following?

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