Understanding the Aerobic System

Which of the following is the primary energy source used by the aerobic system during exercise?

• Creatine phosphate

• Glucose

• Fats and glycogen

• Lactic acid

What is the main difference between aerobic and anaerobic exercise?

• Aerobic exercise requires oxygen, while anaerobic does not.

• Anaerobic exercise requires oxygen, while aerobic does not.

• Both require oxygen but at different intensities.

• Neither requires oxygen.

Which of the following exercises is primarily aerobic?

• Sprinting 100 metres

• Weightlifting

• Long-distance running

• High-intensity interval training (HIIT)

What bi-product is produced in the Krebs cycle?

• Oxygen

• Carbon dioxide

• Water

• Hydrogen

How many ATP are produced in the Krebs cycle?

• 4 ATP
• 2 ATP
• 3 ATP
• 1 ATP

How many ATP are produced in the electron transport chain?

• 15 ATP

• 34 ATP

• 50 ATP

• 2 ATP

Where does the Krebs cycle and electron transport chain occur?

• Nucleus
• Plasma

• Mitochondria

Name the bi-product produced in the electron transport chain

• Carbon dioxide
• Oxygen
• Glucose
• Water

In total how much ATP is produced by the aerobic system?

• 30 to 32 ATP
• 40 to 42 ATP
• 20 to 22 ATP
• 36 to 38 ATP

Which of the following processes occurs in matrix of the mitochondria?

• Krebs cycle

• Photosynthesis

• Fermentation

• Glycolysis