Question

What fuel(s) are the main energy source during short, intense bursts of exercise?

Metabolism of protein only
Metabolism of fat only
Metabolism of carbohydrate only
Carbohydrates and vitamins
Caffeine
Medium-chain triglycerides
Erythropoietin
Carnitine

Answer 1

The answer is Metabolism of carbohydrate only. Remember that metaolism is the set of biochemical reactions that occur in the living organism to obtainn energy from food. The most important carbohydrate is glucose. Glucose readily oxydizes into CO2 and water and produces energy.