National Academy of Sports Medicine (NASM) Certified Personal Trainer (CPT) Certification exam. NASM Chapter 8 Practice Test. There are 25 MCQs with explanations in Chapter 8: Exercise Metabolism and Bioenergetics. Download the free Quiz Quizlet PDF for CPT Certification based on the NASM 7th Edition CPT Study Guide.
This comprehensive set of 25 multiple-choice questions (MCQs) delves into the intricate processes of energy systems, ATP production, and substrate utilization during exercise. Tailored for aspiring personal trainers, these questions cover the first law of thermodynamics, fuel usage during various activity intensities, and the biochemical pathways essential for optimal physical performance.
NASM Chapter 8 Practice Test
Q1. What does the first law of thermodynamics state in the context of human energy systems?
- (A) Energy is created from nothing during exercise
- (B) Energy can be transferred and transformed, but not created or destroyed
- (C) Energy within the human body decreases with time
- (D) Energy is only derived from the breakdown of carbohydrates
Q2. Which substrate is primarily used for energy during high-intensity exercise?
- (A) Fats
- (B) Proteins
- (C) Carbohydrates
- (D) Ketone bodies
Q3. What is ATP in the context of exercise metabolism?
- (A) A type of muscle fiber
- (B) A hormone that regulates energy
- (C) The main energy currency of the cell
- (D) A special type of fat used for energy
Q4. Which system provides energy for short bursts of high-intensity activity, such as a 100-meter sprint?
- (A) ATP-PC system
- (B) Glycolytic system
- (C) Oxidative system
- (D) Ketogenic system
Q5. What is the primary source of energy during prolonged low-intensity activities like marathon running?
- (A) Carbohydrates
- (B) Proteins
- (C) Fats
- (D) ATP only
Q6. How does the body primarily produce ATP during the glycolytic system?
- (A) By breaking down glucose or glycogen without oxygen
- (B) Through the oxidation of fatty acids
- (C) By converting protein into amino acids
- (D) Using phosphocreatine breakdown
Q7. What is the role of proteins in exercise metabolism?
- (A) They are the primary energy source during exercise
- (B) Used as a last resort for energy when carbohydrates and fats are depleted
- (C) They prevent the use of carbohydrates and fats
- (D) Proteins are not used for energy
Q8. Which type of activity would primarily utilize the oxidative system?
- (A) Sprinting 100 meters
- (B) Heavy weight lifting
- (C) Long-distance running
- (D) Jumping rope for one minute
Q9. What happens to the energy produced by metabolism that is not used for mechanical work or stored?
- (A) It is stored indefinitely as fat
- (B) It is converted into protein
- (C) It dissipates as heat
- (D) It is excreted from the body
Q10. What are ketone bodies?
- (A) A type of protein used for energy
- (B) Stored forms of carbohydrates
- (C) Molecules produced during the breakdown of fatty acids
- (D) Enzymes that break down glucose
Q11. What is the significance of the phosphocreatine system in exercise?
- (A) It provides energy for prolonged endurance activities
- (B) It supports energy needs during low-intensity activities
- (C) It supplies quick bursts of energy during high-intensity activities
- (D) It is the primary system for all athletic performance
Q12. How does the thermic effect of food contribute to daily energy expenditure?
- (A) It decreases the total energy spent in metabolism
- (B) It is the energy used to digest, absorb, and metabolize food nutrients
- (C) It refers to the energy used to exercise
- (D) It increases the body’s resting metabolic rate permanently
Q13. What determines the primary fuel source during exercise?
- (A) The time of day the exercise is performed
- (B) The intensity and duration of the activity
- (C) The type of exercise equipment used
- (D) The ambient temperature and humidity
Q14. What is the primary energy source at rest and during low-intensity activities?
- (A) Proteins
- (B) Carbohydrates
- (C) Fats
- (D) Phosphocreatine
Q15. Which of the following describes the role of insulin in energy metabolism?
- (A) It breaks down fatty acids into ketones
- (B) It stimulates the uptake of glucose by cells
- (C) It increases protein breakdown for energy
- (D) It enhances the phosphocreatine system
Q16. What is glycolysis primarily responsible for in exercise metabolism?
- (A) Converting glucose to ATP in the absence of oxygen
- (B) Breaking down protein into amino acids
- (C) Oxidizing fatty acids to produce ATP
- (D) Creating insulin to regulate blood sugar levels
Q17. What happens to muscle glycogen stores during prolonged high-intensity exercise?
- (A) They increase as fat stores are converted to glycogen
- (B) They remain constant as proteins are primarily used
- (C) They deplete as they are a primary energy source
- (D) They convert entirely into fatty acids
Q18. Which energy system is primarily used at the start of exercise?
- (A) Oxidative system
- (B) ATP-PC system
- (C) Glycolytic system
- (D) Ketogenic system
Q19. What is the oxidative system’s main function in energy production?
- (A) To generate energy without oxygen
- (B) To provide quick bursts of ATP
- (C) To produce ATP over long periods through aerobic processes
- (D) To create immediate energy from protein breakdown
Q20. How does the body compensate when ATP demand exceeds ATP production during high-intensity exercise?
- (A) By reducing the intensity of the exercise
- (B) By switching entirely to fat metabolism
- (C) By increasing the rate of glycolysis
- (D) By stopping the exercise
Q21. What role do ketone bodies play in energy metabolism?
- (A) They are a primary energy source during short bursts of activity
- (B) They are produced when carbohydrate intake is low to provide an alternative energy source
- (C) They inhibit glycolysis and enhance fat storage
- (D) They increase protein synthesis for energy
Q22. What does the term ‘fat-burning zone’ refer to in exercise physiology?
- (A) A specific range of heart rate where maximum fat oxidation occurs
- (B) The temperature at which body fat melts and is excreted
- (C) The level of intensity where only fats are used for energy
- (D) A myth that suggests a special exercise zone for fat loss
Q23. How does exercise intensity relate to the substrate used for energy?
- (A) Higher intensities use more proteins
- (B) Lower intensities primarily use carbohydrates
- (C) Higher intensities primarily use carbohydrates
- (D) There is no relationship between intensity and substrate used
Q24. What is the primary function of the ATP-PC system in exercise?
- (A) To provide energy for prolonged activities over several hours
- (B) To supply energy rapidly for short, intense bursts of activity lasting up to 10 seconds
- (C) To break down fatty acids into ATP
- (D) To store extra carbohydrates as glycogen
Q25. What is the effect of exercise duration on substrate utilization?
- (A) Longer duration exercises increase the use of proteins for energy
- (B) Short duration exercises use more fats as the primary energy source
- (C) Longer duration exercises shift from primarily using carbohydrates to fats
- (D) Short duration exercises primarily use ketone bodies
See also:
- NASM CPT Practice Test 2024 Study Guide (UPDATED)
- Chapter 1: The Modern State of Health and Fitness
- Chapter 2: The Personal Training Profession
- Chapter 3: Psychology of Exercise
- Chapter 4: Behavioral Coaching
- Chapter 5: The Nervous, Skeletal, and Muscular Systems
- Chapter 6: The Cardiorespiratory, Endocrine, and Digestive Systems
- Chapter 7: Human Movement Science
- Chapter 8: Exercise Metabolism and Bioenergetics
- Chapter 9: Nutrition
- Chapter 10: Supplementation