Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: MuNitrosomonas europaea, danho rokutanga rekuita oxidation (ammonia kusvika kuhydroxylamine) rinoitwa neenzyme ammonia monooxygenase (AMO).  Mubvunzo: Chii chinoita rutivi rwokutanga rwokuora?
enzyme ammonia monooxygenase