ATP-PCr system

• How is ATP made by the ATP-Phosphocreatine (PCr)System?

  By phosphorylating ADP - adding a phosphate group taken from PCr
• WHere is PCr stored?


  inside cells
• How fast does the ATP-PCr system generate energy?


  Very quickly
• When is ATP-PCr system used and WHY?


  During short bursts of vigorous exercise (eg tennis serve)

  • because PCr runs out after a few seconds
• Details about ATP-PCr System?


  anaerobic and alactic (doesnt form any lactate)
• What does anaerobic mean?


  It does not need oxygen
• What does alactic mean?


  It does not form any lactate
• What does some of the Cr get broken down into?


  Creatine, which is REMOVED from the body via the kidneys
• What is Cr?


  creatine
• Who might have higher creatine levels?

  People who exercise regularly and those with a high muscle mass
• How is creatine removed from the body?


  Via the kidneys
• What may higher creatine levels also indicate?


  kidney damage