This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The bone of the upper arm is called A) Humerus. B) Femur. C) Tibia. D) Radius. Show Answer Correct Answer: A) Humerus. 2. The thick filament is composed of: A) Myosin. B) Actin. C) All the above. D) None of the above. Show Answer Correct Answer: A) Myosin. 3. What physiological mechanism allows for the gradual increase in muscle tension during sustained contractions? A) Motor unit synchronization. B) Wave summation. C) Motor unit recruitment. D) Tetanus. Show Answer Correct Answer: B) Wave summation. 4. What equation would accurately allow you to calculate an athlete's maximum heart rate (HR$_{max}$) A) HRmax = 207-(0.7 x age in years). B) HRmax = 208-(0.7 x age in years). C) HRmax = 207-(0.6 x age in years). D) HRmax = 208-(0.6 x age in years). Show Answer Correct Answer: B) HRmax = 208-(0.7 x age in years). 5. The rib is a A) Long bone. B) Flat bone. C) Short bone. D) Irregular bones. Show Answer Correct Answer: B) Flat bone. 6. Which of the following is a characteristic of Type I diabetes? A) High insulin receptor sensitivity. B) Insulin resistance. C) Autoimmune destruction of beta cells. D) Overproduction of insulin. Show Answer Correct Answer: C) Autoimmune destruction of beta cells. 7. During aerobic exercise, A) Oxygen uptake increase and carbon dioxide production are decrease. B) Oxygen uptake decrease and carbon dioxide production are decrease. C) Oxygen uptake decrease and carbon dioxide production are increase. D) Both oxygen uptake and carbon dioxide production are increased. Show Answer Correct Answer: D) Both oxygen uptake and carbon dioxide production are increased. 8. Muscle fatigue sets in due to the nonavailability of A) Calcium. B) ATP. C) Actin binding sites. D) Sodium. Show Answer Correct Answer: B) ATP. 9. Which statement is false regarding the anatomical position? A) The palms face the front. B) The thumbs point away from the body. C) The head is turned towards the left. D) The poster is standing erect. Show Answer Correct Answer: C) The head is turned towards the left. 10. The body system that takes in food and breaks it down A) Stomach. B) Circulatory system. C) Digestive system. D) Respiratory system. Show Answer Correct Answer: C) Digestive system. 11. When the diaphragm relaxes this creates A) A decrease in chest volume. B) An increase in chest volume. C) An increase in lung capacity. D) No change in air volume. Show Answer Correct Answer: A) A decrease in chest volume. 12. Connect muscle to bone A) Fascia. B) Tendon. C) Neurotransmitter. D) Rachet strap. Show Answer Correct Answer: B) Tendon. 13. What must happen for inspiration to occur? A) Diaphragm contracts and the lung volume decreases. B) Diaphragm relaxes and the lung volume decreases. C) Diaphragm contracts and the lung volume increases. D) Diaphragm relaxes and the lung volume increases. Show Answer Correct Answer: C) Diaphragm contracts and the lung volume increases. 14. Which of the following viral infections can cause Insulin Dependent Diabetes Mellitus (IDDM)? A) Congenital measles (Rubella), cytomegalovirus, adenovirus, and mumps. B) Chickenpox and influenza. C) Common cold and sore throat. D) Malaria and dengue fever. Show Answer Correct Answer: A) Congenital measles (Rubella), cytomegalovirus, adenovirus, and mumps. 15. Pace maker of the heart A) Purkinjee fibers. B) AV node. C) SA node. D) Bundle of His. Show Answer Correct Answer: C) SA node. 16. In a normal person, what percentage of the cardiac output is dependent on the "atrial kick" ? A) 25%. B) 35%. C) 45%. D) 55%. Show Answer Correct Answer: A) 25%. 17. Abnormal or unusual heart sounds. A) Congestive heart failure (CHF). B) Heart murmurs. C) Bradycardia. D) Tachycardia. Show Answer Correct Answer: B) Heart murmurs. 18. Which thin filament protein bind to Ca during muscle contraction? A) Actin. B) Myosin. C) Troponin. D) Tropomyosin. Show Answer Correct Answer: C) Troponin. 19. Which part of the respiratory system is primarily responsible for gas exchange? A) Trachea. B) Bronchi. C) Alveoli. D) Larynx. Show Answer Correct Answer: C) Alveoli. 20. How many bones human skeletal system consists A) 204. B) 209. C) 207. D) 206. Show Answer Correct Answer: D) 206. 21. What metabolic pathway primarily fuels the energy needs of fast-twitch glycolytic muscle fibers during high-intensity exercise? A) Oxidative phosphorylation. B) Glycolysis. C) Aerobic respiration. D) Lipolysis. Show Answer Correct Answer: B) Glycolysis. 22. Attached to bones A) Cardiac. B) Smooth. C) Skeletal. D) None of the above. Show Answer Correct Answer: C) Skeletal. 23. The shoulder blade in pectoral girdle is A) Clavicle. B) Scapula. C) Both A and B. D) None of these. Show Answer Correct Answer: B) Scapula. 24. Why is multinucleation important in skeletal muscle fibers? A) Allows rapid protein synthesis for repair and growth. B) Prevents calcium buildup. C) Increases mitochondrial density. D) Helps reduce lactic acid. Show Answer Correct Answer: A) Allows rapid protein synthesis for repair and growth. 25. What is the circuit that carries blood to the tissues and returns to the heart? A) Pulmonary. B) Systemic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Systemic. ← PreviousNext →Related QuizzesClass 12 Physical Education Chapter 9 Physiology And Exercise Quiz 1Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 2Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 3Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 4Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 5Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 6Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 7Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 8Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 9Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books