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Multiple Choice Quiz on Nitrogen Fixation

This quiz is designed to assess your basic knowledge in ‘Nitrogen Fixation’. Questions come under ‘medium’ category. Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking ' Score'. Percentage score will be displayed along with right answers.

nitrogen cycle

1. Nitrate reductase enzyme forms
NO3-
NO2-
N2
Amino acid
2. The existence of N2 fixing bacteria in soil was discovered by
Robert Koch
Lister
Louis Pasteur
Winogradsky
3. Nitrosomonas converts
Nitrate to nitrite
Nitrite to nitrate
ammonia to nitrites
nitrites to ammonia
4. Denitrification is also called
Putrefaction
heterotrophic nitrification
assimilatory nitrate reduction
dissmilatory nitrate reduction
5. Non legume plants nodules contain nitrogen fixing
ascomycetes
basidiomycetes
zygomycetes
actinomycetes
6. Due to the lightening nitrogen is converted into
nitric oxide
nitric acid
nitrates
nitrogen oxide
7. Nitrosomonas and Nitrobacter are
ammonifying bacteria
denitrifying bacteria
nitrogen fixing bacteria
nitrifying bacteria
8. Nitrites into nitrates conversion is done by
Pseudomonas
Nitrobacter
Nitrosomonas
Nitrosaspira
9. In nitrogen cycle nitrite is converted to nitrate by
Azotobacter
Rhizobium
Nitrobacter
Clostridium
10. Arrange the following process of nitrogen cycle in proper sequence (i) Denitrification (ii)Nitrogen Fixation (iii) Ammonification (iv)Nitrification
ii-iii-iv-i
i-ii-iii-iv
i-iii-ii-iv
iv-iii-ii-i
Score =
Correct answers:
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