Home › MCQs › MDCAT Biology › Question #11249
Back to Questions
MDCAT Biology QUESTION #11249
Question 1
In the absence of oxygen, yeast cells undergo fermentation to produce:
  • Lactic acid and NAD$^+$
  • Ethanol, CO$_2$, and NAD$^+$✔️
  • Acetyl-CoA and CO$_2$
  • Pyruvate and ATP
Correct Answer Explanation
Yeast undergoes alcoholic fermentation in anaerobic conditions, converting pyruvate to ethanol and CO$_2$ while regenerating NAD$^+$ from NADH. This allows glycolysis to continue producing ATP.