Question

The conversion of ammonia to nitrate is performed primarily by soil - living bacteria and other nitrifying bacteria. Which of the following is the correct order for this conversion?

• A. Nitrite>Nitrate>Ammonia
• B. Ammonia>Nitrite>Nitrate
• C. Nitrite>Ammonia>Nitrate
• D. Nitrate>Ammonia>Nitrite

Answer 1

The correct option is B

Ammonia>Nitrite>Nitrate

Ammonia is produced by the breakdown of organic sources of nitrogen. Nitrogen is the fourth most abundant element in living things, being a major constituent of proteins and nucleic acids.The nitrification process is carried out by two different types of bacteria. Nitrosomonas carry out the first step of the process, producing nitrite. The resulting nitrite is then converted to nitrate by Nitrobacters.