Question

Denitrification is done by

• A. Nitrosomonas bacteria
• B. Nitrobacter bacteria
• C. Pseudomonas bacteria
• D. putrefying bacteria

Answer 1

The correct option is C

Pseudomonas bacteria

Explanation of correct option-

(C) Pseudomonas bacteria:

The process of conversion of nitrates into free molecular nitrogen by the action of Pseudomonas bacteria is called denitrification.

Explanation of incorrect options-

(A) Nitrosomonas bacteria - It is the bacteria that convert ammonia into nitrites.

(B) Nitrobacter bacteria - It converts nitrites into nitrates for easy absorption by plants.

(D) putrefying bacteria - These are the bacteria that convert proteins from dead organisms into ammonia.

Thus, denitrification is done by Pseudomonas bacteria.

Hence, option (C) is correct.