Chap 9 pt. 3

Question 1

Aerobic Metabolism

Answer 1

requires O2, 95% of ATP of resting cell

Question 2

Glycolysis

Answer 2

generates 2 ATP

Question 3

Glycolysis steps

Answer 3

1. Glucose enters cytosol, Phosphate attached
2. Second Phosphate attached
   - steps 1 and 2 = -2ATP
3. 6-carbon chain spilt to 3-carbon molecules
4. Phosphate attached to each molecule
5. one ATP molecule formed from each molecule
   - +2 ATP
6. Atoms rearrange in molecule, releasing water molecule
7. Second ATP molecule formed from each molecule
   - +2 ATP

Question 4

Oxidative refers to the

Answer 4

transfer of electrons

Question 5

Phosphorylation refer to the

Answer 5

generation of ATP

Question 6

Anaerobic Respiration

Answer 6

glycolysis followed by lactic acid fermentation

Question 7

Limits on use of Anaerobic respiration

Answer 7

• lower pH
• Depletion
• Damage
• Muscle fatigue

Question 8

Advantages of aerobic respiration over anaerobic

Answer 8

• no lactic acid produced

- produces 32 ATP/ glucose molecule

Question 9

Limiting factors on using aerobic respiration

Answer 9

-availability of O2

Question 10

At rest

Answer 10

fatty acids and glucose used as fuel for ATP

-aerobic

Question 11

Moderate activity

Answer 11

fatty acids and glucose used as fuel for ATP

-aerobic

Question 12

Peak Activity

Answer 12

glycolysis produces most of ATP (2/3)

-anaerobic

Question 13

Muscle Fatigue

Answer 13

muscles fail to contract in spite of receiving stimulation

Question 14

Psychological fatigue

Answer 14

desire to stop activity due to low blood pH and feeling of pain in brain

Question 15

fast glycolytic (fast fibres)

Answer 15

Type II B

Question 16

Slow oxidative (slow fibres)

Answer 16

Type I

Question 17

Fast oxidative (intermediate fibres)

Answer 17

Type II A