The ATP-PC system Flashcards
1
Q
what is the type of reaction?
A
anaerobic
2
Q
what is the fuel used?
A
chemical: phosphocreatine
3
Q
what is the reaction site?
A
sarcoplasm
4
Q
what is the controlling enzyme?
A
creatine kinase, speeds up the breakdown of PC
5
Q
what is the ATP yield?
A
1
6
Q
what are the by-products?
A
no by-products
7
Q
what is the intensity of the ATP-PC system?
A
very high intensity
8
Q
what is the duration of the ATP-PC system?
A
2-10 seconds
9
Q
sporting example for individual sports
A
vault, javelin, high jump
10
Q
sporting example form team sports
A
counter attack, man-to-man marking
11
Q
advantages of the ATP-PC system
A
- PC is readily available
- anaerobic so no need to wait for 02
- simple and quick process
- no fatiguing by-products
- fast recovery rate to resynthesise PC stores (50% in 30 seconds)
12
Q
disadvantages of the ATP-PC system
A
- limited stores of PC (only enough for up to 10 seconds)
- low ATP yield 1:1 ratio
13
Q
stages within the system
A
1) creatine kinase converts PC into P + C + energy
2) energy released is used to convert ADP + P into ATP
