Exercise Physiology 3 Flashcards
the first bioenergetic pathway to become active at the onset of exercise is
a. glycolysis
b. the ATP-CP system
c. the Krebs cycle
d. the electron transport chain
the ATP-PC system
energy to run a maximal 400-meter race (i.e. 50 to 60 seconds) comes from
a. aerobic metabolism exclusively
b. mostly aerobic metabolism with some anaerobic metabolism
c. a combination of aerobic/anaerobic metabolism, with most of the ATP coming from anaerobic sources
d. the ATP-PC system exclusively
a combination of aerobic/anaerobic metabolism, with most of the ATP coming from anaerobic sources
energy to run a 40-yard dash comes
a. almost exclusively from teh ATP-PC system
b. exclusively from glycolysis
c. almost exclusively from aerobic metabolism
d. from a combination of aerobic/anaerobic metabolism, with most of the ATP being produce aerobically
almost exclusively from the ATP-PC system
the energy to perform long-term exercises (i.e. > 20 min) comes primarly from
a. aerobic metabolism
b. a combination of aerobic/anaerobic metabolism, with anaerobic metabolism producing the bulk of the ATP
c. anaerobic metabolism
d. anaerobic metabolism, with the ATP-PC system producing the bulk of ATP
aerobic metabolism
which of the following has been shown to cause muscle fatigue?
a. the accumulation of H+
b. the accumulation of ATP
c. the accumulation of NA+
d. the accumulation of muscle glycogen
the accumulation of H+
in general, the higher the intensity of the activity, the greater the contrbution of
a. aerobic energy production
b. anaerobic energy production
c. the kerbs cycel to the production of ATP
d. the electron transport chain to the production of ATP
aerobic energy production
what is the end product of glycolysis when oxygen is present in the cell
NADA
what is the end product of glycolysis if oxygen is not presnt in the cell
lactic acid
