Describe the relationship between energy system efficiency and ATP production. (5 marks)
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Sample Answer
- ATP-PCr most efficient for immediate energy but limited ATP yield (1-2 ATP)
- Glycolytic system produces moderate ATP (2-3 ATP) but accumulates lactic acid
- Aerobic system most efficient producing 36-38 ATP molecules per glucose molecule
- Efficiency decreases as intensity increases due to oxygen availability
- ATP production rate highest in ATP-PCr but duration limited by CP stores
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Sample Answer
- ATP-PCr most efficient for immediate energy but limited ATP yield (1-2 ATP)
- Glycolytic system produces moderate ATP (2-3 ATP) but accumulates lactic acid
- Aerobic system most efficient producing 36-38 ATP molecules per glucose molecule
- Efficiency decreases as intensity increases due to oxygen availability
- ATP production rate highest in ATP-PCr but duration limited by CP stores