Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: N2 + 16ATP + 8e- + 8H+ -> 2NH3 + H2 + 16ADP + 16PiAn haɗa aikin tare da hydrolysis na kwatankwacin 16 na ATP kuma yana tare da haɗin gwiwa na kwatankwacin H2. Juyawar N2 zuwa ammoniya yana faruwa ne a wani gungu na ƙarfe da ake kira FeMoco, gajartacciyar kalmar ƙarfe-molybdenum cofactor. Tsarin yana ci gaba ta hanyar jerin matakan protonation da ragewa inda FeMoco mai aiki yana hydrogenates da N2 substrate. A cikin diazotrophs masu zaman kansu, ammoniya da aka samar da nitrogenase an haɗa shi cikin glutamate ta hanyar hanyar glutamine synthetase / glutamate synthase. Kwayoyin halittar microbial da ake buƙata don tabbatar da nitrogen an rarraba su sosai a cikin mahalli daban-daban. Nitrogenases suna saurin lalacewa ta hanyar oxygen. Saboda wannan, ƙwayoyin cuta da yawa sun daina samar da enzyme a gaban iskar oxygen. Yawancin kwayoyin nitrogen-fixing suna wanzuwa ne kawai a cikin yanayin anaerobic, suna numfashi don saukar da matakan oxygen, ko ɗaure oxygen tare da furotin kamar leghemoglobin.  Tambaya: A ina ne mafi yawan kwayoyin nitrogen suke wanzuwa?
yanayin anaerobic