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.