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IB Biology SL C1.2.5 Anaerobic Vs Aerobic Respiration in Humans Questions

Compare aerobic respiration in mitochondria with anaerobic lactate production in the cytoplasm, including ATP yields and links to exercise recovery in IB Biology SL C1.2.5.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Distinguish human aerobic respiration using oxygen in mitochondria and producing CO₂, water and high ATP from anaerobic respiration in the cytoplasm producing lactate and low ATP.
  • Explain how glycolysis, pyruvate fate, lactate formation and oxygen debt support ATP supply during intense exercise.
  • Interpret exercise data for oxygen use, lactate, ventilation and ATP yield to compare aerobic and anaerobic contributions.

IB Biology SL C1.2.5 Anaerobic Vs Aerobic Respiration in Humans Questions question 1

[Maximum number: 1]

State how an oxygen debt is created.

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