Combined Science GCSE
Oxygen debt
What Oxygen debt means in Combined Science GCSE, as defined for AQA.
Definitions of Oxygen debt
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Reference: AQA
The amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells.
Created by the build up of lactic acid, and must be repaid after exercise by taking in extra oxygen to remove the lactic acid.
Created by the lactic acid formed and repaid after exercise by continued fast breathing and heart rate.
Topics that use Oxygen debt
- Aerobic and anaerobic respiration (AQA GCSE)
- Response to exercise (AQA GCSE)
Related terms
- Lactic acid
- Muscle fatigue
- Aerobic respiration
- Anaerobic respiration
- Balanced symbol equation
- Cellular respiration
- Chemical symbols
- Exercise physiology
Using Oxygen debt in the exam
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