Question

Microorganisms that oxidise ammonia to nitrite
(A). Nitrosomonas
(B). Thiobacillus
(C). Nitrobacter
(D). Nitrosolobus

Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A) and (D) only.
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

All nitrifying bacteria whose names start with the prefix "Nitroso-" (like Nitrosomonas) convert ammonia to nitrite, while those starting with "Nitro-" (like Nitrobacter) convert nitrite to nitrate.

Answer 1

The Correct Option is B