Question

Match the following.

A. Nitrification I. Conversion of nitrate to nitrogen gas
B. Denitrification II. Production of ammonia from nitrates​
C. Ammonification III. Conversion of ammonia to nitrate​

Answer 1

• Nitrification is the process by which ammonia is converted into nitrite and then to nitrate by nitrifying bacteria. It is an aerobic process performed by chemoautotrophic bacteria.

• Denitrification is the opposite of nitrification. Here nitrate present in the soil is reduced by denitrifying bacteria to nitrogen. Pseudomonas and Thiobacillus are denitrifying bacteria.

• Ammonification is the process where microscopic organisms like bacteria or other types of decomposing organisms, break down nitrogen-containing chemicals from dead organic matter, into simple substances like ammonia.

So, the correct answer is A (III), B (I), C (II).