- A Acetyl CoA and water
- B Glucose and oxygen
- C Ethanol and carbon dioxide
- D Lactic acid only
Correct answer: C. Ethanol and carbon dioxide
Explanation: Yeast carries out alcoholic fermentation, converting pyruvate into ethanol and CO2 in the absence of oxygen, regenerating NAD+ needed to sustain glycolysis.
Concept context
Glycolysis, the Krebs cycle, the electron transport chain, fermentation, and the respiratory quotient. The cellular energy-release counterpart to photosynthesis.