GWSC VCE PE U3O2: Chapter 6 (Energy Systems)

What is the fuel source for the Anaerobic Glycolysis System?

• PC

• Glycogen

• FFAs

• Glycogen & FFAs

At what duration does the aerobic energy system become the largest contributor of energy during maximal exercise?

• 5 seconds

• 15 seconds

• 45 seconds

• 75 seconds

how many ATP are produced per glucose molecule using the aerobic energy system?

• .7 ATP

• 2-3 ATP

• 36-38 ATP

• 441 ATP

At what speed are ATP produced using the ATP-PC system?

• Slow

• Medium

• Fast

• Very Fast

Which of the following is a non-fatiguing by-product of the aerobic energy system

• Inorganic Phosphates (Pi)

• Hydrogen ions (H+)

• Heat

• Lactic Acid

Hydrogen ions are a fatiguing by-product of which energy system?

• ATP-PC

• Anaerobic Glycolysis System

• Aerobic System

• All three systems

An elite 100m (10sec) sprinter would predominantly use which energy system during a race?

• ATP-PC Energy System

• Anaerobic Glycolysis Energy System

• Aerobic Energy System

What would be the predominant cause of fatigue for a 400m sprinter at the end of a 46 second race?

• Fuel depletion

• Rapid accumulation of hydrogen ions

• Hyperthermia

The main reason that FFAs are not the preferred fuel source for high intensity exercise is because...

• there is a limited supply

• they do not produce enough ATP

• they require longer, more complex chemical reactions

• they lead to hydrogen ion accumulation

Amino acids are used for energy production under which circumstances?

• High intensity exercise

• Low intensity exercise

• When oxygen is not available

• Under extreme circumstances when glucose and FFA stores are low