Energy Systems

The ATP-PC system is utilised during what exercise intensity?

• Sub-maximal intensity (<85% MHR)

• High Intensity (85% MHR)

• High Intensity (95% MHR)

• At rest

At what duration does the aerobic energy system become dominant?

• 5 seconds

• 15 seconds

• 45 seconds

• 75 seconds

An elite 3000m runner would predominantly use which energy system during a race?

• ATP-PC Energy System

• Anaerobic Glycolysis Energy System

• Aerobic Energy System

Which would be the dominant energy system in this physical activity?

• ATP-PC System

• Lactic Acid System

• Aerobic System

The anaerobic glycolysis system

• operates without oxygen

• provides energy for about 10 seconds to 90 seconds

• is used for high intensity exercise

• all of the above

• none of the above

For athletic events such as javelin and discus, the predominant energy system used is

• aerobic system

• anaerobic glycolysis system

• ATP-PC system

The substance that accumulates in the muscle during anaerobic glycolysis is known as:

• phosphate creatine

• triglyceride

• lactic acid

• ATP

Which of the following fuels can be used to produce energy?

• Carbohydrates

• Proteins

• Fats

• all of the above

• none of the above

The energy system used for a particular activity will depend on the:

• intensity of the activity

• duration of the activity

• both of the above

• none of the above

The speed of ATP production when the aerobic energy system is predominant is:

• very fast

• fast

• slow