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ETC & ox P

biosci 106

QuestionAnswer
ETC -transports e- from NADH&FADH2-->O2 forming H2O -H pumped into intercellular space -move back into matrix via ATP synthase
Complex 1 -NADH CoQ oxidoreductase -Fe-S -FMN-->FMNH2 -4H+ -2e- 1 at a time
complex 2 -Succinate CoQ oxidoreductase -Fe-S -contains succinate dehydrogenase
Complex 3 -CoQH2 cytochrome C oxidoreductase -FeS,Heme - 4H+
Complex 4 -Cytochrome C oxidase -Cu2+,heme -2H+ -e's to O2
CoQ -both complex 1&2 -CoQ-->CoQH2
ATP generation -H+ gradient -inter-->matrix via ATPsyn
Chemiosmosis flow of H+ down gradient-E used to form ATP
ATP synthase -2 complex proteins -Fo
Complex Fo -3protein chains -channel in membrane -Rotates-->conformational change opens active sites
Complex F1 -3active sites -produce ATP
Energy yield TOTAL= -32ATP -10NADH -2FADH2
Created by: meglet
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