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Which of the following accurately describes fermentation?

AFermentation generates more ATP than cellular respiration.
BFermentation always produces carbon dioxide.
CFermentation makes NAD+ needed to keep glycolysis going.
DFermentation can only occur in the presence of oxygen.

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The right answer is C

In the anaerobic mode, the reduction of pyruvate to lactate or ethanol (fermentations) ensures the reoxidation of NADH to NAD + consumed during the oxidation of glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate (reaction 6 of glycolysis). This regeneration of NAD + allows glycolysis to be maintained in the absence of oxygen.


In the aerobic mode, NAD + is regenerated by the respiratory chain.

the right answer is C

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