Outline the efficiency of ATP production in the ATP-PCr system. (4 marks)
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Sample Answer
- The ATP-PCr system provides the most rapid rate of ATP production of all energy systems, making it crucial for explosive activities like sprinting or jumping.
- When creatine phosphate breaks down, it forms one ATP molecule, providing immediate energy for high-intensity efforts.
- Despite its speed, the system is limited by the small amount of creatine phosphate stored within the muscle cells, typically only 8-10 seconds worth of energy.
- During maximal effort activities like a 100 m sprint, the ATP-PCr system becomes depleted within 10 seconds, requiring other energy systems to take over for continued activity.
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Sample Answer
- The ATP-PCr system provides the most rapid rate of ATP production of all energy systems, making it crucial for explosive activities like sprinting or jumping.
- When creatine phosphate breaks down, it forms one ATP molecule, providing immediate energy for high-intensity efforts.
- Despite its speed, the system is limited by the small amount of creatine phosphate stored within the muscle cells, typically only 8-10 seconds worth of energy.
- During maximal effort activities like a 100 m sprint, the ATP-PCr system becomes depleted within 10 seconds, requiring other energy systems to take over for continued activity.