ATP - PC system

Question 1

What is it used for

Answer 1

ATP-PC system is used for high intensity and short duration action and movements
- it is used after the first 2 seconds of ATP stored in muscle is depleted.
ATP-PC system can be used for 2-10 seconds.
Recovery time = 3 minutes.

Question 2

Creatine Kinase

Answer 2

as ATP levels fall ADP and P levels rise, which triggers the release of creatine kinase which is am enzyme that speeds up the breakdown of phosphocreatine stored in muscles.

Question 3

(PC) - Phosphocreatine

Answer 3

made up of creatine with a high energy phosphate bond and is broken down easily anaerobically in the muscle sarcoplasm.

Question 4

ATP-PC system

Answer 4

for every mole of PC broken down, one mole of ATP can be resynthesised.
- this process is known as a coupled reaction.
- the breakdown of PC releases a free phosphate and energy which can be used to resynthesise ATP.