Energy Systems Flashcards
what pathway does the phosphagen system follow?
anaerobic
immediate
what pathway does the lactic acid system follow?
anaerobic
short term
what pathway does the aerobic system follow?
aerobic
long term
how many seconds does the phosphagen system take?
8-10 seconds
how many seconds does the lactic acid system take?
1-3 minutes
how many seconds does the aerobic system take?
3 minutes-unlimited time
intensity of the aerobic system?
low to moderate
intensity of the lactic acid system?
high
intensity of the phosphagen system?
very high
waste product in the lactic acid system?
lactic acid
fatiguing by product
number of ATP in the lactic acid system?
limited ATP (2 ATP)
substrate of the lactic acid system?
glucose and glycogen
waste product of the phosphagen system?
no fatiguing waste product
NEED TO KNOW LIMITING FACTOR - this system continually adds P to ADP to form ATP until the levels of CP decrease
substrate of the phosphagen system?
creatine phosphate
in the aerobic stage how many ATP are at each stage?
unlimited (38 total)
glycolysis - 2
krebs - 2
ETC - 34
waste products in the aerobic system?
no fatiguing waste product
stage 1 - carbon dioxide
stage 2 - carbon dioxide
stage 3 - water
what are the substrates for krebs, glycolysis and ETC?
glycolysis - (stage 1) glucose
krebs - (stage 2) acetyl CoA
ETC - (stage 3) hydrogen
definition of the phosphagen system?
this system involves creatine phosphate and the re-generation of ATP
definition of ETC system?
provides the body with the highest amount of energy per glucose molecule
definition of the krebs cycle?
involves the further breakdown of pyruvic acid and the release of more carbon as carbon dioxide
definition of glycolysis?
involves the splitting of 1 molecule of glucose into 2 molecules of pyruvic acid
definition of the lactic acid system?
involves the splitting of 1 molecule of glucose into 2 molecules of pyruvic acid
as no oxygen is present it is converted into lactic acid cause the muscle to fatigue
number of ATP in the phosphagen system and the source of substrate?
very limited ATP
the additional phosphate is provided by CP, present in the muscles (and it is removed from this compound by the enzyme creatine kinase) and ADP (from the utilisation of ATP)
