L10

Question 1

Oxidative Phosphorylation %

Answer 1

90% of ATP synthesis occurs here

Question 2

ATP Amount and Why

Answer 2

80-100g (constantly resynthesized and large molecule hence why in small amoutns)

Question 3

1. PCR Pathway

Answer 3

5-10s for explosive activities + anaerobic

Question 4

2. Anaerobic Glycolysis

Answer 4

• Onle stage 1 of CHO breakdown
• Moderate to high intensity exercise
• Major fuel for high intensity exercise (20s to 2-3 mins)

Question 5

3. Aerobic Metabolism/Oxidative Phosphorylation

Answer 5

• Rest nd slow-moderate intensity
• CHO stages 1 to 2
• Glycolysis and CAC
• More processes = longer duration

Question 6

Lipolysis

Answer 6

Triglycerides + 3 H2O = Glycerol + 3FA (lipase)

Question 7

Glycerol

Answer 7

• Glycolysis pathway at step 5 (3-phosphoglyceralderhyde) and degrades to pyruvate

Question 8

Glycerol molecule breakdown

Answer 8

19 ATP

Question 9

FFA

Answer 9

Beta-Oxidation
1. H taken to ETC to produce ATP (1 H pair)
2. FFA fragments transformed to Acetyl-CoA entering CAC for processing

Question 10

Energy from Fat Catabolism

Answer 10

1 FFA = 147 ATP
1 Glycerol = 119 ATP

Question 11

Overall Energy from 1 Fat Molecule

Answer 11

3 FFA (441 ATP) + Glycerol (119 ATP)
= 560 ATP

Question 12

Main fuel for 20 minutes of low-moderate intensity

Answer 12

50/50% for untrained and 40/60% for trained