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Physiology > Chapter 8 > Flashcards

Chapter 8 Flashcards

1
Q

Absent of O2

A

Anaerobic Glycolysis

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2
Q

Anaerobic Glycolysis Substrate

A

glucose

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3
Q

Anaerobic Gylcolysis Electron recipient

A

pyruvate acid converts to lactic acid

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4
Q

Anaerobic Gylcolysis net atp produce per substrate molecule

A

2 ATP

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5
Q

Anaerobic Gylcolysis occurs where

A

cytosol

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6
Q

Anaerobic Gylcolysis limited by

A

NAD abundance and rate of removal of lactic acid

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7
Q

Anaerobic Gylcolysis peak rate

A

high

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8
Q

is Krebs Citric Acid CYcle anaerobic or aerobic?

A

anaerobic but indirect aerobic

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9
Q

Krebs Citric Acid CYcle substrate

A

pruvate acid

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10
Q

Krebs Citric Acid CYcle electron recipient

A

NAD and FAD

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11
Q

Krebs Citric Acid CYcle FAD and NAD reduced to?

A

FADH2 and NADH2

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12
Q

Krebs Citric Acid CYcle limited by

A

NAD and FAD abundance

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13
Q

Krebs Citric Acid CYcle net ATP per substrate molecule

A

1 ATP produced per PA, 2 ATP per glucose

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14
Q

Krebs Citric Acid CYcle takes place in

A

mitochondria

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15
Q

Krebs Citric Acid CYcle peak rate

A

slow to fast depending on source of oxygen

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16
Q

Electron transport chain/ oxidative phosphorylation peak rate

A

depends on source of oxygen

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17
Q

Electron transport chain/ oxidative phosphorylation occurs in?

A

mitochondrial membrane

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18
Q

Electron transport chain/ oxidative phosphorylation net ATP

A

34 ATP per glucose depending on tightness of coupling w/proton and diffusion

19
Q

Electron transport chain/ oxidative phosphorylation limited by

A

oxygen availability

20
Q

Electron transport chain/ oxidative phosphorylation O2 converted to

A

h2o

21
Q

Electron transport chain/ oxidative phosphorylation recipeint

A

oxygen

22
Q

Electron transport chain/ oxidative phosphorylation anaerobic or aerobic

A

aerobic

23
Q

Electron transport chain/ oxidative phosphorylation fuel

A

NADH2 and FADH2

24
Q

Invertebrate or Vertebrate is able to tolerate total-body anoxia?

A

invertebrate

25
Q

Vertebrate Responses to hypoxia/anoxia

A

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
26
Q

Beginning of exercise what happens and follows?

A

start of exercise, oxygen demands goes up immediately but supply lags behind which causes “oxygen deficit”

27
Q

light exercise- oxygen demand, oxygen uptake, oxygen deficit and EPOC?

A

no lactic build up, small O2 def and EPOC, creatine/myglobin partially exhausted

28
Q

what kind of exercises shows Lactic buildup, larger o2 def/epoc, myglobin/creatine probably exhausted, steady state exercise ?

A

heavy exercise

29
Q

Supramaximal exercise-oxygen demand, oxygen uptake, oxygen deficit and EPOC?

A

lactic acid build up, huge o2 def/epoc, creatine/myglobin exhausted, non-steady state due to lactic acid accumulation

30
Q

Explain why particular mechanisms of ATP production dominate in different kinds of activity.

A

animals muscle use diff proportion of fuel sources at different times during exercise

31
Q

Aerobic Catabolism( entire pathway) net ATP TOTAL

A

38 ATP per molecule of glucose

32
Q

Aerboic catbolism- Glycolysis/citric acid/electron transport/oxidative net ATP

A

2,2,34

33
Q

Aerobic Catabolism( entire pathway) oxidizes ?

A

carbs,lipids,protein to make atp

34
Q

Aerobic Catabolism( entire pathway) state?

A

steady, can continue as long as oxygen is available and can reach mitochondria at the rate being used

35
Q

Creatine/Arginine Phosphate anaerobic or aerobic?

A

anaerobic

36
Q

Creatine/Arginine Phosphate substrate

A

creatine/arginine

37
Q

Creatine/Arginine Phosphate reduced or not ?

A

phosphorylation not reduced

38
Q

Creatine/Arginine Phosphate limited by?

A

creatine/argine abundance

39
Q

Creatine/Arginine Phosphate net atp

A

1

40
Q

atp+creatine converts to

A

adp+creatine phosphate

41
Q

Creatine/Arginine Phosphate occurs in?

A

muscle cells

42
Q

Creatine/Arginine Phosphate peak rate?

A

high

43
Q

The peak rate that animals can synthesize ATP could best be measured by which mean?

A

calculating aerobic capacity or maximum aerobic power

44
Q

Enzyme that increase w/ endurance training?

A

citrate synthase

Physiology (15 decks)

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