ATP-PC System

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  • ATP-PC System
    • breakdown of PC gives off energy
      • broken down by enzyme creatine kinase
    • P+C+energy (exothermic)
      • energy+ADP+P=ATP (endothermic)
        • Coupled reaction
          • P+C+energy (exothermic)
            • energy+ADP+P=ATP (endothermic)
              • Coupled reaction
                • ATP - ATPase = energy for movement
          • ATP - ATPase = energy for movement
      • 2 ATP produced
      • Advantages
        • energy is released rapidly
          • quick resynthesis of ATP
        • no waste products
        • oxygen  is not required
      • Disadvantages
        • stores of PC are limited
          • sufficient for only 5-8 secs of intense exercise
        • refuelling the system can take up to 3mins
        • only provides energy for up to 10 secs

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