Question

Select the bacteria which converts the ammonia to nitrite?

• A. Nitrobacter only
• B. Nitrosomonas and Nitrobacter
• C. Nitrosomonas only
• D. Nitrosomonas and Nitrosococcus.

Answer 1

Answer: (D)

Nitrification
- It refers to the conversion of ammonia into nitrate by soil bacteria.
- Following steps are involved in nitrification :
1 . Oxidation of ammonia to nitrite (by Bacteria - Nitrosomonas and Nitrococcus)
2 . Further oxidation of nitrite to nitrate (by Bacteria - Nitrobacter)