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WorksheetsEnergy Systems in Exercise
Total questions: 16
Worksheet time: 8mins
What is the role of adenosine triphosphate (ATP) in the human body?
D. It is involved in the breakdown of glucose
C. It is used for long-duration, low-intensity activities
B. It is the only immediately available source of energy for muscular contraction
A. It is a waste product of metabolism
Which energy system is predominant during very high-intensity activities lasting 2-10 seconds?
C. ATP-PC system
B. Aerobic system
A. Glycolytic system
D. Anaerobic glycolysis
What is the by-product of anaerobic glycolysis?
D. ATP
C. H2O
B. CO2
A. Lactic acid
Which energy system is predominant during high-intensity activities lasting 10 seconds to 3 minutes?
C. Anaerobic glycolysis
B. Aerobic system
D. Kreb's cycle
A. ATP-PC system
What is the overall energy yield of the electron transport chain (ETC) in the aerobic system?
D. 34 moles of ATP
B. 4 moles of ATP
A. 2 moles of ATP
C. 30 moles of ATP
Which energy system is predominant during low to moderate-intensity activities lasting more than 3 minutes?
C. Anaerobic glycolysis
B. Glycolytic system
A. ATP-PC system
D. Aerobic system
What is the relative contribution of the aerobic system to overall energy production during a marathon?
C. 90%
B. 75%
D. 99%
A. 50%
What type of exercise is more energy demanding than continuous exercise when the mean running speed is the same?
C. Low-intensity exercise
A. Continuous exercise
B. High-intensity exercise
D. Intermittent exercise
What is the product of anerobic glycolysis?
B. CO2
D. ATP
A. Lactic acid
C. H2O
What is the primary fuel used in the aerobic system for long-duration, low-intensity activities?
A. Glucose
C. Triglycerides
B. Phosphocreatine
D. ATP
What is the primary source of energy during high-intensity, short-duration activities?
A. Glycolytic system
B. ATP-PC system
C. Aerobic system
D. Kreb's cycle
What is the by-product of the ATP-PC system?
A. Lactic acid
B. CO2
C. H2O
D. Creatine and phosphate
What is the role of the glycolytic system in energy production?
A. It is the primary source of energy for long-duration, low-intensity activities
B. It is the primary source of energy for high-intensity, short-duration activities
C. It is the primary source of energy for moderate-intensity activities lasting more than 3 minutes
D. It is the primary source of energy for very high-intensity activities lasting 2-10 seconds
What is the primary energy system used during a 400-meter sprint?
A. Aerobic system
B. ATP-PC system
C. Glycolytic system
D. Kreb's cycle
Which energy system is most active during a 5-minute high-intensity interval training session?
A. Aerobic system
B. ATP-PC system
C. Anaerobic glycolysis
D. Electron transport chain
What are the main products of the aerobic energy system?
A. Lactic acid
B. CO2 and H2O
C. Creatine phosphate
D. ATP
