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NAD+ is reduced in glycolysis , pyruvate oxidation and y Krebs cycle and in electron transport chain then NADH gain hydrogen NADH works as an electron carrier in this process and because there are 2 in glycolysis 2 in pyruvate oxidation 6 in Krebs cycle and is the first thing that oxidase in ETC providing energy in high amount because is going to loose all its h+ FADH2 only is produced 2x in glycolysis and is oxidized in ETC...so NADH provide more electrons than FADH and also more energy in aerobic cellular respiration I am in grade 11 ap Biology and also esl student thanks

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9y ago

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