Which of the following soil bacteria is directly responsible for converting nitrites into … — JAMB UTME

Which of the following soil bacteria is directly responsible for converting nitrites into nitrates during the nitrogen cycle?

Nitrobacter

Nitrification is a two-step aerobic bacterial conversion. In the first step, Nitrosomonas oxidizes ammonia into nitrites (

NO_2^-

). In the second step, Nitrobacter oxidizes nitrites into nitrates (

NO_3^-

), which is the primary form of nitrogen absorbed by plant roots.

Identify the stage of the nitrogen cycle described in the question.

The stage involving the oxidation of nitrites (

NO_2^-

) into nitrates (

NO_3^-

) is the second step of nitrification.

Nitrification occurs in two sequential steps mediated by distinct chemoautotrophic bacteria.

Match the appropriate bacterial genus to this specific chemical transformation.

Nitrosomonas converts ammonia (

NH_3

) to nitrite (

NO_2^-

), whereas Nitrobacter converts nitrite (

NO_2^-

) to nitrate (

NO_3^-

Nitrobacter derives metabolic energy specifically from the oxidation of nitrite to nitrate.

Nitrification process in the nitrogen cycle

Question