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GCSE Biology · key term
The amount of extra oxygen the body needs after exercise to react with accumulated lactic acid and remove it from cells.
Used by AQA
Specification 4.4.2.2 · Paper 1
Revise: Exercise ResponseBreathing and heart rate may remain raised while the body deals with the accumulated lactic acid. This continuing demand is associated with the oxygen debt: the amount of extra oxygen needed after exercise to react with accumulated lactic acid and remove it from the cells.
For Higher Tier questions, define oxygen debt as extra oxygen needed after exercise, not simply as a shortage of oxygen during exercise.
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