Question

The introductory passage describes the discovery of microbes that can perform both steps of nitrification. Use the terms provided to complete the following sentences to describe this process. You will only use each term once, so choose the sentence that is the best fit.

Drag the term on the left to match its description on the right.

Comammox

Nitrification

The second step of nitrification

The first step of nitrification

Denitrification

Ammonia monooxygenase

: is responsible for catalyzing the reaction that converts NH₃ to hydroxylamine.

: involves the oxidation of NO₂^- to NO₃^-.

: describes bacteria with the enzymes for both steps of nitrification

: involves the oxidation of NH₃ to NO₂^-.

: involves the steps involved in the oxidation of ammonia to nitrate.

: involves the steps involved in the reduction of nitrate to ammonia.

Answer 1

Comammox - describes bacteria with the enzymes for both steps of nitrification

Nitrification- involves the steps involved in the oxidation of ammonia to nitrate.

The second step of nitrification- involves the oxidation of NO2- to NO3-.

The first step of nitrification-involves the oxidation of NH3 to NO2-.

Denitrification-involves the steps involved in the reduction of nitrate to ammonia.

Ammonia monooxygenase- is responsible for catalyzing the reaction that converts NH3 to hydroxylamine.