Question

31
2NH, + 30, 2NO,- + 2H+ + 2H,O. The reaction can be caused by
1. Nitrosomonas
2. Nitrococcus
3. Nitrobacter
4. Pseudomonas
5. Thiobacillus
(1) 1 and 5 only
(2) 1 and 2 only
(3) 4 and 5 only
(4) Only 3​

Answer 1

Answer:

.

I) In the first step, ammonia is oxidised to nitrites by the action of nitrosomonas and nitrococcus bacteria.

II) In the second step, nitrate is further oxidised to nitrate with the help of nitrobacter and nitrocystis.

Both the reaction is involved in the process of nitrification. These nitrifying bacteria involved are called chemoautotrophs.

So the correct answer is 'Both the steps occur only in photoautotrophs