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Question

Which molecule links glycolysis with fermentation as well as TCA cycle?

A
Ethanol
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B
Acetaldehyde
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C
PEP
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D
Pyruvic acid.
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Solution

The correct option is D Pyruvic acid.
Glycolysis is the formation of pyruvic acid from glucose in a multi-step process in the presence of enzymes. Pyruvic acid acts as the common molecule which undergoes Krebs cycle in aerobic respiration and fermentation in anaerobic respiration.
So the correct option is 'Pyruvic acid'.

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