Cards (12)

    • How long does the ATP-PC system provide energy for?
      8-10 seconds.
    • Are stores of phosphocreatine limited?
      Yes
    • When can the energy in the ATP-PC system replenish itself?
      During low intensity exercise.
    • How long does ATP last for?
      2 seconds
    • How long does phosphocreatine last for?
      6-8 seconds.
    • What type of exercise is involved in the ATP-PC system?
      Anaerobic/ maximal exercise
    • What detects high levels of ADP?
      Creatine Kinase (enzyme)
    • What enzyme breaks the phosphocreatine bond?
      Creatine kinase
    • Advantages of the ATP-PC system:
      -Energy is released quickly
      -ATP is resynthesised quickly
      -high intensity, short duration
      -short recovery time
    • Disadvantages of the ATP-PC system:
      -limited stores of phosphocreatine
      -High intensity exercise can only be done in a short period of time
      -full recovery takes 2-3 minutes
    • During exercise, what does the energy continuum do?
      Rise
    • What are the energy thresholds?
      The time when one system becomes exhausted then the other takes over.