The final electron acceptor in lactic acid fermentation is:
A
NAD+
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B
pyruvate
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C
O2
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D
lactic acid
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Solution
The correct option is B
pyruvate
In lactic acid fermentation the glycolytic product pyruvate is re-used as the final electron acceptor to regenerate the NADH molecule. Pyruvate accepts the electrons from NADH to form lactic acid.