Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Whakawhiti: Ko te taahiraa tuarua (hydroxylamine ki te nitrite) ka mahia i nga waahanga e rua nga whākōkī rereke. Ko te hydroxylamine oxidoreductase (HAO), ka huri i te hydroxylamine ki te waikura nitric.  Patai: He aha te mea ka huri hei waikura nitric?
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