1.3.1 Definitions and differences

• The energy system used in aerobic exercise is the aerobic energy system.
• Aerobic exercise relies on oxygen to generate ATP.
• What is anaerobic exercise characterized by?

  High intensity and no oxygen
• What is a byproduct of anaerobic glycolysis?

  Lactate
• What is the defining characteristic of aerobic exercise in terms of energy production?

  Oxygen utilization
• Match the fuel source with its characteristics in aerobic exercise:

  Glucose ↔️ High ATP production

  Fatty Acids ↔️ Very high ATP production
• Anaerobic exercise requires oxygen to produce energy.

  False
• Match the fuel source with its characteristics in anaerobic exercise:

  Glucose ↔️ Low ATP production

  No oxygen requirement ↔️ Lactate byproduct
• Where does aerobic metabolism primarily occur in the cell?

  Mitochondria
• What is aerobic exercise characterized by?

  Continuous activity and oxygen use
• What is the typical duration of aerobic exercise?

  30 minutes or more
• Glucose requires oxygen to produce ATP in the aerobic energy system.

  True
• Anaerobic exercise occurs in the absence of oxygen.


  True
• What fuel source is used in the aerobic energy system during sustained activities like jogging?

  Glucose and fatty acids
• During aerobic exercise, you can comfortably hold a conversation due to its moderate intensity.


  True
• The byproduct of anaerobic metabolism that leads to muscle fatigue is lactate.
• In anaerobic glycolysis, glucose is broken down into pyruvate.
• Order the following characteristics based on whether they relate to aerobic or anaerobic exercise:

  1️⃣ Longer duration: Aerobic

  2️⃣ Moderate intensity: Aerobic

  3️⃣ Oxygen requirement: Aerobic

  4️⃣ High intensity bursts: Anaerobic

  5️⃣ No oxygen requirement: Anaerobic
• Aerobic exercise results in the buildup of lactate.

  False
• Aerobic exercise uses oxygen to produce energy.


  True
• Where does aerobic metabolism occur in cells?

  Mitochondria
• During anaerobic exercise, ATP is generated through glycolysis.
• The anaerobic energy system is essential for activities like sprinting and weightlifting.
• Aerobic exercise typically involves durations around 30 minutes or more.
• What are examples of activities that rely heavily on the aerobic energy system?

  Jogging and cycling
• What is the primary energy production process in the anaerobic energy system?

  Glycolysis
• The anaerobic energy system is ideal for sustained endurance activities like marathon running.

  False
• In anaerobic exercise, glucose is broken down in the cytoplasm.