This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physical Education Chapter 5 Physiology And Exercise – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the smallest contractile unit of a muscle cell? A) Sarcomere. B) Epimysium. C) Myofibril. D) Endomysium. Show Answer Correct Answer: A) Sarcomere. 2. Mechanical tension from resistance exercise most directly activates protein synthesis through: A) AMPK inhibition of mTORC1. B) MTORC1 activation via mechanosensitive pathways (e.g., phosphatidic acid). C) Inhibition of insulin receptor substrate. D) Activation of glycogen phosphorylase. Show Answer Correct Answer: B) MTORC1 activation via mechanosensitive pathways (e.g., phosphatidic acid). 3. What is the primary concentric action of the Transverse Abdominis muscle? A) Extension of the spine. B) Compresses and supports the abdomen. C) Rotation of the spine. D) Flexion of the thoracic and lumber spine. Show Answer Correct Answer: B) Compresses and supports the abdomen. 4. How many ATPs are made in respiration? A) 2. B) 36. C) 38. D) 10. Show Answer Correct Answer: C) 38. 5. What increases cardiac output during exercise? A) Lower heart rate. B) Lower stroke volume. C) Increased HR and SV. D) Smaller heart. Show Answer Correct Answer: C) Increased HR and SV. 6. Which of the following correctly describes the sequence of excitation of heart muscle? A) AV node $\rightarrow$ bundle of HIS $\rightarrow$ SA node. B) SA node $\rightarrow$ AV node $\rightarrow$ bundle of HIS. C) Bundle of HIS $\rightarrow$ SA node $\rightarrow$ AV node. D) AV node $\rightarrow$ SA node $\rightarrow$ bundle of HIS. Show Answer Correct Answer: B) SA node $\rightarrow$ AV node $\rightarrow$ bundle of HIS. 7. Which factor is MOST associated with relapse after initial adherence? A) Lack of knowledge. B) Low intrinsic motivation. C) High self-efficacy. D) Adequate social support. Show Answer Correct Answer: B) Low intrinsic motivation. 8. As exercise increases, what gasses stimulate what receptors in the carotid bodies and respiratory centers? A) CO2 and H+ ; Nociceptors. B) CO2 and H+ ; Baroreceptors. C) CO2 and H+ ; Chemoreceptors. D) O2 and H+ ; Chemoreceptors. Show Answer Correct Answer: C) CO2 and H+ ; Chemoreceptors. 9. Fill in the blank:Carbohydrates are stored as ..... in muscles and liver. A) Glycogen. B) Glucose. C) Starch. D) Cellulose. Show Answer Correct Answer: A) Glycogen. 10. Sel saraf pasien hanya mencapai-60 mV dan tidak menghasilkan potensial aksi. Ambang rangsang rata-rata neuron adalah-55 mV. Mengapa impuls tidak terjadi? A) Ion K+ tidak cukup keluar dari neuron. B) Depolarisasi tidak mencapai ambang untuk membuka kanal Na+ bertegangan. C) Neurotransmiter tidak dilepaskan. D) Kanal Ca2+ terbuka terlalu cepat. Show Answer Correct Answer: B) Depolarisasi tidak mencapai ambang untuk membuka kanal Na+ bertegangan. 11. A physiologically grounded benefit of resistance training in older adults is: A) Reduced neuromuscular function. B) Improved muscle function and metabolic health, supporting independence. C) Guaranteed prevention of all falls. D) Elimination of sarcopenia regardless of diet/health. Show Answer Correct Answer: B) Improved muscle function and metabolic health, supporting independence. 12. What subdivision of the autonomic nervous system increases heart rate, vasoconstriction, and bronchodilation? A) Sympathetic nervous system. B) Parasympathetic nervous system. C) Pathetic nervous system. D) None of the above. Show Answer Correct Answer: A) Sympathetic nervous system. 13. The branch of biology that deals with the normal functions of living organisms and their parts. A) Exercise. B) Physiology. C) Scientific Method. D) Kinesiology. Show Answer Correct Answer: B) Physiology. 14. Altitude training has a long term benefit on which energy system A) ATP-CP System. B) Lactic Acid System. C) Aerobic System. D) Anaerobic Systems. Show Answer Correct Answer: C) Aerobic System. 15. What does EPOC stand for? A) Energy production. B) Extra oxygen intake after exercise. C) Heart rate recovery. D) Muscle repair. Show Answer Correct Answer: B) Extra oxygen intake after exercise. 16. Which factor does NOT influence the gut microbiome? A) Diet. B) Exercise. C) Antibiotics. D) Hair color. Show Answer Correct Answer: D) Hair color. 17. Which of the following substrates can be used in oxidative phosphorylation? A) Fatty acids. B) Creatine phosphate only. C) Lactic acid only. D) None of the above. Show Answer Correct Answer: A) Fatty acids. 18. At the same absolute workload, endurance-trained individuals generally exhibit a lower RER because of: A) Reduced capillary density. B) Greater fat oxidation and reduced carbohydrate reliance. C) Higher reliance on amino acid oxidation. D) Lower mitochondrial content. Show Answer Correct Answer: B) Greater fat oxidation and reduced carbohydrate reliance. 19. When a person begins moderate exercise, when does alveolar ventilation first increase? A) After 30-60 seconds of activity. B) Immediately, within a few seconds. C) Only after lactic acid builds up. D) Once heart rate doubles. Show Answer Correct Answer: B) Immediately, within a few seconds. 20. Which neuromuscular adaptation explains early increases in strength during resistance training? A) Muscle fiber hypertrophy. B) Motor unit recruitment efficiency. C) Increased satellite cell activity. D) Increased mitochondrial density. Show Answer Correct Answer: B) Motor unit recruitment efficiency. 21. What is the ATP yield for the aerobic system? A) 4 ATP. B) 36 ATP. C) 2 ATP. D) 12 ATP. Show Answer Correct Answer: B) 36 ATP. 22. What is the role of SNS vasodilation in thermoregulation? A) Minimizes heat loss. B) Enhances heat loss. C) Reduces blood flow. D) Increases blood pressure. Show Answer Correct Answer: B) Enhances heat loss. 23. What is Arteriovenous oxygen difference (a-VO2 diff) A) Difference of blood flow in the muscle. B) Difference of blood O2 in the arterial blood compared to the venous blood. C) Difference of CO2 entering and leaving the lungs. D) Difference of lactic acid in the muscle before and after. Show Answer Correct Answer: B) Difference of blood O2 in the arterial blood compared to the venous blood. 24. What chemical changes are associated with vasodialation in active skeletal muscle during exercise? A) Increased H+ & CO2. B) Decreased nitric oxide. C) Endothelin-1. D) Increased pH. Show Answer Correct Answer: A) Increased H+ & CO2. 25. Which would result in a increase in muscle efficiency and therefore muscle force production A) Increase in the angle of pennation. B) Decrease in the angle of pennation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increase in the angle of pennation. ← PreviousNext →Related QuizzesClass 11 Physical Education Chapter 5 Physiology And Exercise Quiz 1Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 2Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 3Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 4Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 5Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 6Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 7Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 8Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 9Class 11 Physical Education Chapter 5 Physiology And Exercise Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books