Biology for IGCSE & O level - Respiration (Section 4 - No. 7)
What type of respiration is occurring in the muscles when a person is running a marathon?
Aerobic
Anaerobic
Glycolysis
Fermentation
Explanation
Both types are occurring, but aerobic becomes important, so the person can perform the running for long periods. Anaerobic happens to keep up for short bursts of energy.
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