Aerobic Quiz 2025

What is produced during the Krebs cycle along with ATP?

• Pyruvic acid
• Glucose
• Lactic acid
• Carbon dioxide and water

What is the initial process of breaking down glucose in the aerobic energy system called?

• Krebs cycle
• Beta oxidation
• Glycolysis
• Electron transport chain

Where does the Krebs cycle take place within the cell?

• Cytoplasm
• Mitochondria
• Nucleus
• Cell membrane

Which cycle does pyruvic acid enter after glycolysis in the aerobic energy system?

• Beta oxidation
• Glycolysis
• Electron transport chain
• Krebs cycle

What type of activities primarily utilise the aerobic energy system?

• High-intensity sprinting
• Submaximal activities
• Weightlifting
• Interval training

Which of the following energy sources can be used in the aerobic energy system?

• Only fats
• Fats and proteins only
• Glucose, fats, and proteins
• Only glucose

What is the final stage of the aerobic energy system?

• Krebs cycle
• Electron transport chain
• Glycolysis
• Beta oxidation

What is a key disadvantage of the aerobic energy system?

• Rapid energy production
• Requires oxygen
• Takes time to activate
• Produces low energy yield

How many ATP molecules can be produced from one molecule of glucose in the aerobic energy system?

• 2 ATP
• 32 to 34 ATP
• 36 to 38 ATP
• 4 ATP

How long can the aerobic energy system last?

• It runs out after 10 seconds
• Only during high-intensity activities
• As long as there is oxygen and fuel
• Only a few minutes