Biology 0610 · IGCSE · Aerobic respiration

Aerobic respiration — practice question

When exercise is intense, lactic acid accumulates in muscles, resulting in an oxygen debt. Which statement describes a stage in the removal of the oxygen debt during recovery?

  • AAnaerobic respiration breaks down lactic acid in the muscles.
  • BAerobic respiration breaks down lactic acid in the muscles.
  • CAnaerobic respiration breaks down lactic acid in the liver.
  • DAerobic respiration breaks down lactic acid in the liver.

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