GCSE Biology – Oxygen debt

Last updated: 15/06/2020
AQA Oxford GCSE Science – Combined science higher Bioenergetics GCSE Biology – Oxygen debt

Learning Objectives

-I can explain how an oxygen debt can be repaid

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  1. Current
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  3. Answered

  1. If an athlete has no deep breathing after exercise, what does this mean?

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  2. What does deep breathing after exercise mean?

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  3. Which type of respiration releases more energy?

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  4. What is the name of the build-up of lactic acid?

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  5. What is the definition of oxygen debt?

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  6. What is another definition of oxygen debt?

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  7. What is the other name for oxygen debt?

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  8. What type of respiration leads to lactic acid build up?

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  9. Why does aerboic respiration release more energy?

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  10. What are the products in aerobic respiration?

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  11. What are the products in anaerobic respiration?

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  12. If an athlete cannot break down lactic acid, what happens?

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  13. Why must lactic acid be removed?

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  14. Why else must lactic acid be removed?

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  15. What does needing oxygen to break down lactic acid mean?

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  16. What happens if lactic acid is not completely removed?

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  17. Where is lactic acid taken after it is formed?

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  18. How is lactic acid moved to the liver?

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  19. What happens to lactic acid in the liver?

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  20. What happens when lactic acid is oxidised?

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  21. What else can happen to lactic acid?

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  22. What is the glucose then used for?

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  23. What do these processes require?

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  24. How long can it take to pay back oxygen debt?

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  25. Why do breathing and heart rate not return to normal straight away?

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