Fermentation: In the absence of oxygen, organisms
perform cellular respiration by glycolysis, but not
pyruvate oxidation, Krebs Cycle, or the electron
transport chain. To recycle NAD+, fermentation
reduces pyruvate (takes electrons and proton from
NADH) to either lactic acid or ethanol. For instance,
yeast performs alcohol fermentation to yield CO2
and alcohol (shown here).
reduces pyruvate (takes electrons and proton from
NADH) to either lactic acid or ethanol. For instance,
yeast performs alcohol fermentation to yield CO2
and alcohol (shown here).
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