Energy Systems in Exercise

What are the food sources broken down via catabolism to be used by cells?

What is the storage form of glucose in the liver and muscle?

• Glucose

• Glycogen

• Fructose

• Lactic Acid

What is the primary energy source during exercise?

• Carbohydrates

• Fats

• Proteins

• Vitamins

What is the breakdown of glucose/glycogen in the absence of oxygen called?

• Aerobic

• Anaerobic

• Glycolysis

• Oxidative phosphorylation

What is the byproduct of glycolysis in the absence of oxygen?

• ATP

• Lactic Acid

• Glucose

• Pyruvate

What happens to a muscle cell if it becomes too acidic?

What is the process of converting lactate back to pyruvate and glucose called?

What is the duration of the ATP-PCr system?

• 10-15 seconds

• 2-3 minutes

• 5-8 seconds

• 1-2 minutes

What is the main function of hydrogen and electron carrier molecules?

What is the role of ATP in muscle contraction?