ATP/PC System

ATP/PC System

1. It is an anaerobic system so oxygen is not required for the reactions

2. Uses the chemical fuel PC

3. The site of reaction is in the sarcoplasm of muscle cells

4. The reaction is controlled by the enzyme Creatine Kinase

5. The reaction can only produce one ATP molecule

6. This energy system is the first one to be used during exercise and starts 2 seconds after beginning exercise but will only last upto 10 seconds

7. Used for very short bursts of high intensity exercise

8. Does not release any by-products from the reaction

9. PC ---> P + C + ENERGY

   • Exothermic reaction
   • Coupled Reaction
     • ENERGY + ADP + P ---> ATP
       • Endothermic reaction