Which of the following organisms is a free-living,aerobic,photosynthetic nitrogen fixer?

  • A
    Rhizobium
  • B
    Azotobacter
  • C
    Azospirillum
  • D
    Nostoc

Explore More

Similar Questions

Molybdenum is the essential constituent of

If all the $Nitrogenase$ enzymes are inactivated by radiation,then which of the following will not occur?

The product$(s)$ of the reaction catalyzed by nitrogenase in the root nodules of leguminous plants is/are:

Ureides are preferred forms for storage and transport of nitrogen in

$N_2$ fixation is

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo