Question

Nitrification process ceases at pH (a) < 5 (b) < 6 (c) < 4 (d) < 7

Answer 1

Answer:

a)<5

Explanation:

Nitrification declined below pH 7.0 and nearly ceased around pH 4.5 (Haynes, 1996).

Answer 2

The nitrification process ceases at Ph < 5.

Explanation:

• Nitrification declined below pH 7.0 and nearly ceased around pH 4.5

• Nitrification is the process of converting ammonia to nitrite and then to nitrate, another important step in the global nitrogen cycle.  

• Nitrification is a two-step process performed by different taxonomic groups. Ammonium is oxidized to nitrite by the archaeal strain Thaumarchaeota and several marine beta proteobacteria and gammaproteobacteria.  

• Nitrite is oxidized to nitrate by bacteria of the genera Nitrobacteria and Nitrospirae.