Category : Science

Nitrogen Fixation Trivia Quiz

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Questions & Options


1. Name the German agronomist who discovered nitrogen fixation.

92382 Hermann Hellriegel
92383 Charles Darwin
92384 Michael Faraday
92385 John Brown

2. Name the Dutch microbiologist who discovered nitrogen fixation.

92386 Charles Darwin
92387 Martinus Beijerinck
92388 Mary Martin
92389 John Brown

3. Atmospheric nitrogen is converted to ammonia by an enzyme...

92390 Hydrogenase
92391 Nitrogenase
92392 Bacillus
92393 Enzymase

4. Nostoc and Anabaena are examples of which blue-green algae?

92394 Cyanobacteria
92395 Streptococcus
92396 E coli
92397 Salmonella

5. Symbiotic organisms are associated with....

92398 Weeds of kharif
92399 Cereal grasses
92400 Pulse grass
92401 None of these

6. Which of the following is the example of symbiotic bacteria?

92402 Anabaena
92403 Nostoc
92404 Clostridium
92405 Rhizobium

7. An example of free-living non-symbiotic Bacteria is...

92406 Clostridium
92407 Rhizobium
92408 Nostoc
92409 Azospirillum

8. 90% of the nitrogen is fixed by...

92410 Industries
92411 Soil microorganisms
92412 Atmosphere
92413 Chemical treatment

9. In the first stage of nitrogen fixation ammonia is converted into....

92414 NO2
92415 N2O
92416 NH4
92417 N2

10. In the last stage of nitrogen fixation ammonia is converted into....

92418 N2
92419 NH3
92420 NO2
92421 N2O
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