Chapter 8 Flashcards
Absent of O2
Anaerobic Glycolysis
Anaerobic Glycolysis Substrate
glucose
Anaerobic Gylcolysis Electron recipient
pyruvate acid converts to lactic acid
Anaerobic Gylcolysis net atp produce per substrate molecule
2 ATP
Anaerobic Gylcolysis occurs where
cytosol
Anaerobic Gylcolysis limited by
NAD abundance and rate of removal of lactic acid
Anaerobic Gylcolysis peak rate
high
is Krebs Citric Acid CYcle anaerobic or aerobic?
anaerobic but indirect aerobic
Krebs Citric Acid CYcle substrate
pruvate acid
Krebs Citric Acid CYcle electron recipient
NAD and FAD
Krebs Citric Acid CYcle FAD and NAD reduced to?
FADH2 and NADH2
Krebs Citric Acid CYcle limited by
NAD and FAD abundance
Krebs Citric Acid CYcle net ATP per substrate molecule
1 ATP produced per PA, 2 ATP per glucose
Krebs Citric Acid CYcle takes place in
mitochondria
Krebs Citric Acid CYcle peak rate
slow to fast depending on source of oxygen
Electron transport chain/ oxidative phosphorylation peak rate
depends on source of oxygen
Electron transport chain/ oxidative phosphorylation occurs in?
mitochondrial membrane
Electron transport chain/ oxidative phosphorylation net ATP
34 ATP per glucose depending on tightness of coupling w/proton and diffusion
Electron transport chain/ oxidative phosphorylation limited by
oxygen availability
Electron transport chain/ oxidative phosphorylation O2 converted to
h2o
Electron transport chain/ oxidative phosphorylation recipeint
oxygen
Electron transport chain/ oxidative phosphorylation anaerobic or aerobic
aerobic
Electron transport chain/ oxidative phosphorylation fuel
NADH2 and FADH2
Invertebrate or Vertebrate is able to tolerate total-body anoxia?
invertebrate
Vertebrate Responses to hypoxia/anoxia
O2 regulation- attempt to extract more 02, up-regulate breathing rate,gill area,heart rate
- not tolerable to total-body anoxia
- O2 conform-metabolic depression
- switches to anaerobic glycolysis
- produce lactic acid/brain function
Beginning of exercise what happens and follows?
start of exercise, oxygen demands goes up immediately but supply lags behind which causes “oxygen deficit”
light exercise- oxygen demand, oxygen uptake, oxygen deficit and EPOC?
no lactic build up, small O2 def and EPOC, creatine/myglobin partially exhausted
what kind of exercises shows Lactic buildup, larger o2 def/epoc, myglobin/creatine probably exhausted, steady state exercise ?
heavy exercise
Supramaximal exercise-oxygen demand, oxygen uptake, oxygen deficit and EPOC?
lactic acid build up, huge o2 def/epoc, creatine/myglobin exhausted, non-steady state due to lactic acid accumulation
Explain why particular mechanisms of ATP production dominate in different kinds of activity.
animals muscle use diff proportion of fuel sources at different times during exercise
Aerobic Catabolism( entire pathway) net ATP TOTAL
38 ATP per molecule of glucose
Aerboic catbolism- Glycolysis/citric acid/electron transport/oxidative net ATP
2,2,34
Aerobic Catabolism( entire pathway) oxidizes ?
carbs,lipids,protein to make atp
Aerobic Catabolism( entire pathway) state?
steady, can continue as long as oxygen is available and can reach mitochondria at the rate being used
Creatine/Arginine Phosphate anaerobic or aerobic?
anaerobic
Creatine/Arginine Phosphate substrate
creatine/arginine
Creatine/Arginine Phosphate reduced or not ?
phosphorylation not reduced
Creatine/Arginine Phosphate limited by?
creatine/argine abundance
Creatine/Arginine Phosphate net atp
1
atp+creatine converts to
adp+creatine phosphate
Creatine/Arginine Phosphate occurs in?
muscle cells
Creatine/Arginine Phosphate peak rate?
high
The peak rate that animals can synthesize ATP could best be measured by which mean?
calculating aerobic capacity or maximum aerobic power
Enzyme that increase w/ endurance training?
citrate synthase