Fate of Pyruvate Under Anaerobic Conditions

Medium Biochemistry Metabolism

In biochemistry, the pathway of metabolism involves various biochemical reactions that sustain cellular function. One critical aspect of energy metabolism is glycolysis, a series of reactions that converts glucose into pyruvate, producing ATP and NADH in the process. Consider the fate of pyruvate under anaerobic conditions. Which of the following statements correctly describes the conversion of pyruvate when oxygen is not available?

Pyruvate is converted into acetaldehyde and then into ethanol via alcoholic fermentation.

Pyruvate enters the mitochondria and undergoes oxidative phosphorylation.

Pyruvate is converted into lactate (lactic acid) via lactic acid fermentation.

Pyruvate is converted directly into glucose through gluconeogenesis.

Hint

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