Worksheets7 Responses Energy Systems
Total questions: 16
Worksheet time: 11mins
Which of the following is an immediate source of energy for muscle contraction during exercise?
Stored adenosine triphosphate (ATP)
Blood glucose
Glycogen
Fatty acids
What is the primary function of the ATP-PC system during exercise?
To provide energy for long-duration activities
To supply immediate energy for short, explosive movements
To break down fatty acids for energy
To transport oxygen to muscles
Which energy system is primarily responsible for providing energy during a 100-metre sprint?
Aerobic system
Lactate system
ATP-PC system
Fatty acid oxidation
What is the main fuel source for the lactate (anaerobic glycolysis) system?
Fatty acids
Blood glucose and muscle glycogen
Phosphocreatine
Oxygen
Which of the following processes occurs in the mitochondria during aerobic energy production?
ATP-PC breakdown
Anaerobic glycolysis
Krebs cycle and electron transport chain
Phosphocreatine resynthesis
Which energy system has the highest ATP yield per molecule of glucose?
ATP-PC system
Lactate system
Creatine phosphate system
Aerobic system
What is the approximate ATP yield from one molecule of glucose via the aerobic system?
2 ATP
4 ATP
38 ATP
1 ATP
The term "energy system continuum" refers to:
The exclusive use of one energy system at a time
The sequential use of energy systems depending on exercise intensity and duration
The breakdown of only fats for energy
The use of only stored ATP
What does OBLA stand for in exercise physiology?
Onset of Blood Lactate Accumulation
Oxygen Balance Level Assessment
Output of Basal Lactic Acid
Overload of Blood Lactate Activity
At what point does OBLA typically occur in terms of blood lactate concentration?
2 mmol/L
4 mmol/L
6 mmol/L
8 mmol/L
Which energy system is dominant during a marathon (26.2 miles)?
ATP-PC system
Lactate system
Aerobic system
Creatine phosphate system
Which of the following best describes the recovery time for the ATP-PC system after maximal effort?
5-10 seconds
30 seconds to 2 minutes
3-5 minutes
10-15 minutes
Which energy system is primarily responsible for energy production during a 400-metre sprint?
ATP-PC system
Lactate system
Aerobic system
Fatty acid oxidation
Which of the following is NOT a fuel source for the body's energy systems?
Glycogen
Phosphocreatine
Lactic acid
Fatty acids
What is the main role of mitochondria in energy production during exercise?
Store phosphocreatine
Store glycogen
Initiate anaerobic glycolysis
Carry out aerobic metabolism to produce ATP
Lee regularly does circuit training which uses all three of his energy systems.
One of these energy systems is the lactate system.
Lee completes a full circuit with a 2 minute recovery period before completing a second circuit.
Explain the effect of the two-minute recovery period between each circuit on Lee's blood lactate levels.
(3 marks)
