Describe the relationship between energy system efficiency and ATP production. (5 marks)
--- 15 WORK AREA LINES (style=lined) ---
Show Answers Only
Answers could include/expand on any of the following points:
- 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.
Show Worked Solution
Answers could include/expand on any of the following points:
- 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.