Energy System Review

How do energy systems resynthesize ATP?

• By absorbing sunlight

• By finding energy from fuels within the body

• By converting oxygen into ATP

• By breaking down proteins

What is the main difference between anaerobic and aerobic glycolysis?

• Anaerobic glycolysis uses oxygen, aerobic does not.

• Anaerobic glycolysis breaks down glycogen without oxygen, aerobic with oxygen.

• Both processes do not involve oxygen.

• Aerobic glycolysis breaks down glycogen without oxygen, anaerobic with oxygen.

What is the body's preferred source of energy?

• Proteins

• Fats

• Carbohydrates

• Vitamins

Why are fats less efficient in providing energy during higher intensity work?

• They require less oxygen to break down

• They require a large energy investment and a large amount of oxygen to break down

• They are stored as glycogen

• They are used up quickly

Which fuel breaks down rapidly and rebuilds ATP very quickly but runs out quickly?

• CP

• CHO

• Fats

• Protein

Which fuel can be broken down both anaerobically and aerobically?

• CP

• CHO

• Fats

• Protein

Which fuel is rarely used to rebuild ATP and has the largest fuel molecules?

• CP

• CHO

• Fats

• Protein

What happens to the contribution of fats to energy as exercise intensity increases?

• It increases

• It decreases

• It remains the same

• It fluctuates

When CHO levels reach a critically low point, what does the body turn to for energy?

• Protein

• Fat

• Vitamins

• Minerals

According to the graph, what happens to the percentage contribution of fat as duration increases?

• It decreases.

• It remains the same.

• It increases.

• It fluctuates randomly.