ATP-PC energy system Flashcards
ATP is what
adenosine triphosphate (one adenosine atom and three phosphate atoms)
atp is an ……. molecule
energy dense
the breakdown of atp provides…
the energy needed to fuel muscle contration
ADP is what
adenosine diphosphate
when atp breaks down splits into …,what is the outcome of this
adp and a phosphate breaking the bond releases energy
what energy is used/how at the onset of exercise
atp that is already existing in muscle cells is used, by breaking down into adp and p releasing energy, however this atp is used up very quickly.
what stimulates creatine kinase to catalyse pc
an increase in adp
what enzyme is used to break the bonds between atp
creatine kinase
what is the process (start with enzyme)
creatine kinase catalyses the break down of phosphocreatine into creatine, phosphate and energy, the energy is used to synthesize adp and p to produce atp
examples of sport that use this system
throwing, jumping eg high jump or javeline, or 100m sprint although not all people can do it in 10 secs or energy to start exercising after rest
how many seconds is this system used for/last
10 secs approx
advantage: atp can be…
resynthesized rapidly
advantage: pc stores…
can be resynthesized quickly with oxygen
advantage: no…
fatiguing biproducts
advantage: can extend…
the atp-pc system by the use of creatine supplements
