Problem 1: Starting with glucose, how many ATP will its complete breakdown yield in each stage below? Show all work in a detailed summary.
- Stage 1: ATP yield from glycolysis?
- Stage 2: ATP yield from Pyruvate to acetyl CoA?
- Stage 3: ATP yield from Krebs cycle?
- Total ATP from 1 mol of glucose?
Problem 2: How many acetyl CoA's are produced with the complete breakdown of palmitate (C16_H32_O2)? How many NADH + H? How many FADH2? How many total ATP are produced with palmitate's complete breakdown?
Problem 3: If more energy is derived from breaking down fat (9.4 kcal/g) compared to carbohydrate (4.1 kcal/g), then why does the body preferentially oxidize carbohydrates?
Problem 4: Explain the carbohydrate and fat utilization limits in the body as they relate to exercise intensity and duration.