ɪn ðiːz ˈɔːɹɡənˌɪzəmz, sˈʌlfeɪt sˈɜːvz æz ɐn ᵻlˈɛktɹɑːn ɐksˈɛptɚ, ɐkˈɪn tə ðə jˈuːs ʌv ˈoʊ tˈuː æz ɐn ᵻlˈɛktɹɑːn ɐksˈɛptɚ baɪ ɛɹˈoʊbɪk ˈɔːɹɡənˌɪzəmz.
In these organisms, sulfate serves as an electron acceptor, akin to the use of O2 as an electron acceptor by aerobic organisms.