Biology for IGCSE & O level - Respiration (Section 1 - No. 38)
Which of the following best describes the term "oxygen debt"?
The amount of oxygen consumed during rest.
The extra oxygen needed to remove lactic acid after exercise.
The amount of oxygen used for aerobic respiration.
The amount of oxygen available in the lungs.
Explanation
Oxygen debt represents the extra oxygen needed after exercise to convert lactic acid back into glucose.
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