Anaerobic respiration in human cells produces
- A. ethanol and carbon dioxide
- B. lactate only, with no carbon dioxide
- C. lactate and abundant carbon dioxide
- D. ethanol and lactate together
Explanation
Human muscle cells reduce pyruvate straight to lactate, releasing no CO2, whereas yeast decarboxylates pyruvate to ethanol and CO2. Confusing the two fermentation types is a standard trap, so remember muscles make lactate, not bubbles.
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