Biology for IGCSE & O level - Respiration (Section 1 - No. 20)
Which of the following statements best describes the term "oxygen debt"?
The amount of oxygen required for photosynthesis.
The amount of oxygen used in the electron transport chain.
The additional oxygen needed after exercise to repay the oxygen used during anaerobic respiration.
The amount of oxygen that is produced during aerobic respiration
Explanation
Oxygen debt refers to the extra oxygen needed after exercise to oxidize lactic acid.
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