. Certain bacteria living in the soil poor in oxygen convert nitrates into nitrites and then to free nitrogen and such bacteria are termed as


a. ammonifying bacteria

b. saprophytic bacteria

c. denitrfying bacteria

d. nitrogen fixing bacteria

 

Best Answer

c.

Denitrifying bacteria form a necessary part of the process known as denitrification as part of the nitrogen cycle, their primary purpose is to metabolise nitrogenous compounds, with the assistance of the nitrase reductase enzyme, to turn oxides back to nitrogen gas or nitrous oxides for energy generation.

 

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