Explain the importance of bacteria to the global nitrogen cycle.
Answer:- In the nitrogen cycle, the following processes involve bacteria:-
1) Nitrification-
Ammonia ---------> Nitrite (Nitrosomonas & Nitrococcus)
Nitrite ---------> Nitrate (Nitrobactor)
2) Denitrification-
Nitrate -----------> N2 (Pseudomonas & Thiobacillus)
3) Nitrogen fixation-
N2 -------------> Nitrates (Azotobactor, Beijerinckia, Rhodospirillum, Anabaena, Nostoc)
4) Ammonification-
N2 ------------- Ammonia (Pseudomonas, Proteus, Clostridium, Streptomyces)
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