水处理微生物学（双语）-2.2

水处理微生物学（双语）-2.2SectionBMicrobialmetabolism脊基质B2ElectronTransport,OxidativePhosphorylationandβ-oxiantionofFattyAcids电子传递，氧化磷酸化和脂肪酸的β-氧化1.ElectronTransport1.1电子传递：Thereisaelectrontransportchain.Itisusedtotransportelectron.Intheelectrontransportchain,aseriesofbalancedoxidationandreductionreactionsdrivesthemovementofelectronsthroughthecarrierseriesfromNADHtooxygen.DuringthisprocessenergyisreleasedandATPissynthesized辅酶Q辅酶QH2脱氢酶脱氢酶细胞色素氧化酶还原型氧化型黄素蛋白辅酶Q细胞色素H2O1/2O22a32a12ATP2Fe2+2Fe3+2Fe2+2Fe3+2c2Fe2+2Fe3+ATP2b2Fe3+2Fe2+FADFADH2ATPNADH2NADAAH1.ElectronTransport1.2电子传递的五类物质：NADHdehydrogenases.EnzymesthatcatalysetransferofhydrogenatomsfromreducedNADtoflavoproteins.Flavoproteins.Flavinmononucleotide(FMN)andflavinadeninedinucleotide(FAD).TheflavinsarereducedbyacceptingahydrogenatomfromNADHandoxidizedbylosinganelectron.Electroncarriers,cytochromes.Cytochromesareporphyrincontainingproteinseachofwhichcanbereducedoroxidizedbythelossofasingleelectron.Ironsulfurproteins.Thesearecarriersofelectrons