This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Common Subjects > Physical Education > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the name of the protein myofilament that pulls the actin towards the center of the Sarcomere? A) Fascicle. B) Titin. C) Myosin. D) Actin. Show Answer Correct Answer: C) Myosin. 2. During ventricular ejection A) Only the AV valves open. B) The semilunar valves open and the AV valves close. C) Only the semilunar valves close. D) The semilunar valves close and the AV valves open. Show Answer Correct Answer: B) The semilunar valves open and the AV valves close. 3. Upper respiratory tract has different organs in it. Which one of the following is not a part of URT? A) Pharynx. B) Larynx. C) Trachea. D) Nasal cavity. Show Answer Correct Answer: C) Trachea. 4. Which of the following cranial nerves is not responsible for eye movement? A) Abducens. B) Optic. C) Oculomotor. D) Trochlear. Show Answer Correct Answer: B) Optic. 5. Which of the following is the main measure to prevent sports injuries? A) Proper warming up. B) Food. C) Proper sports facility. D) Knowledge of technique. Show Answer Correct Answer: A) Proper warming up. 6. Which one of the following is not lymphoidal organ? A) Tonsils. B) Liver. C) Thymus. D) Spleen. Show Answer Correct Answer: B) Liver. 7. What is absent in Animal cell? A) Chloroplast. B) Centrioles. C) Cell membrane. D) Vacuole. Show Answer Correct Answer: A) Chloroplast. 8. What role do neutrophils play in the wound healing process? A) They produce collagen. B) They phagocytize bacteria and debris. C) They form new blood vessels. D) They differentiate into fibroblasts. Show Answer Correct Answer: B) They phagocytize bacteria and debris. 9. Training reduces heart rate during exercise by: A) Increasing sympathetic nervous system activity. B) Reducing capillary density. C) Decreasing stroke volume. D) Improving muscle homeostasis. Show Answer Correct Answer: D) Improving muscle homeostasis. 10. If someone were to have nerve damage and couldn't send messages from the brain to the body, which part of the neuron is damaged? A) Synaptic vesicle. B) Dendrite. C) Axon. D) Myelin sheath. Show Answer Correct Answer: C) Axon. 11. This would cause a shift to the right in the oxygen-hemoglobin dissociation curve? A) Exercise. B) Decrease in temperature. C) Increase in pH. D) Decrease in CO2. Show Answer Correct Answer: A) Exercise. 12. Which of the following is NOT a muscle function? A) Moves neurons around body. B) Movement of skeleton. C) Transport substances around body. D) Heat generation. Show Answer Correct Answer: A) Moves neurons around body. 13. Which of the following is not a component of a thin filament? A) Tropomyosin. B) Myosin. C) Troponin. D) Actin. Show Answer Correct Answer: B) Myosin. 14. Which muscle fiber type is characterized by a high capacity for aerobic metabolism and greater endurance during prolonged activities? A) Type III. B) Type IIa. C) Type I. D) Type IIb. Show Answer Correct Answer: C) Type I. 15. Which is the extremely potent vasoconstrictor in RAAS System A) Angiotensin-I. B) Renin. C) ACE. D) Angiotensin-II. Show Answer Correct Answer: D) Angiotensin-II. 16. The reason why tricuspid and bicuspid valves are closed is A) Ventricular filling. B) Ventricular relaxation. C) Attempted backflow of blood into the atria. D) Atrial systole. Show Answer Correct Answer: C) Attempted backflow of blood into the atria. 17. What is the function of the sarcoplasmic reticulum? A) Produces ATP. B) Stores and releases calcium for contraction. C) Generates electrical impulses. D) Attaches myosin to Z discs. Show Answer Correct Answer: B) Stores and releases calcium for contraction. 18. The circulatory system works with the ..... system to provide our body with oxygen. A) Skeletal. B) Digestive. C) Respiratory. D) Muscular. Show Answer Correct Answer: C) Respiratory. 19. Which of the following terms refers to myocardial relaxation or diastole? A) Chronotropy. B) Inotropy. C) Dromotropy. D) Lusitropy. Show Answer Correct Answer: D) Lusitropy. 20. What is function of the axon terminals? A) Conduct electrical implulses. B) Releases the neurotransmitters of the post synaptic cell. C) Releases the neurotransmitters of the presynaptic cell. D) Create myelin. Show Answer Correct Answer: C) Releases the neurotransmitters of the presynaptic cell. 21. In the presence of vasopressin, the greatest fraction of filtered water is absorbed in the? A) Proximal tubule. B) Loop of Henle. C) Distal tubule. D) Cortical collecting duct. Show Answer Correct Answer: A) Proximal tubule. 22. What is a leukocyte? A) A neuron. B) A red blood cell. C) A platelet. D) A white blood cell. Show Answer Correct Answer: D) A white blood cell. 23. Which of the following characteristics is shared by simple and facilitated diffusion of glucose? A) Is inhibited by the presence of galactose. B) Requires metabolic energy. C) Occurs down an electrochemical gradient. D) Is saturable. Show Answer Correct Answer: C) Occurs down an electrochemical gradient. 24. The semilunar valves are only open during which phase A) Atrial contraction and ventricular filling. B) Isovolumetric contraction. C) Ventricular ejection. D) Isovolumetric relaxation. Show Answer Correct Answer: C) Ventricular ejection. 25. Which organ in the body produces insulin? A) Pancreas. B) Stomach after digestion. C) Liver with extra enzymes. D) Heart during exercise. Show Answer Correct Answer: A) Pancreas. 26. In the absence of acrosome the sperm ..... A) Cannot penetrate the egg. B) Cannot swim. C) Cannot get energy. D) Cannot get food. Show Answer Correct Answer: A) Cannot penetrate the egg. 27. Heart of Heart is A) AV Node. B) Purkinji Fibers. C) Bundle of His. D) SA Node. Show Answer Correct Answer: D) SA Node. 28. A patient has a pH of 7.39 and a PaCO2 of 43 mmHg. Which of the following conclusions can be drawn regarding the acid base status of the patient? A) Compensated metabolic acidosis. B) Partly compensated respiratory acidosis. C) Normal acid-base status. D) Normal anion gap metabolic acidosis. Show Answer Correct Answer: C) Normal acid-base status. 29. Freely movable joints are called as A) Free joints. B) Hinge joint. C) Psynovial joints. D) Synovial joints. Show Answer Correct Answer: D) Synovial joints. 30. Gas exchange between capillaries and alveolus takes place through A) Osmosis. B) Diffusion. C) Filtration. D) B and c. Show Answer Correct Answer: B) Diffusion. 31. The bone of the upper arm is called A) Humerus. B) Femur. C) Tibia. D) Radius. Show Answer Correct Answer: A) Humerus. 32. 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. 33. What physiological mechanism allows for the gradual increase in muscle tension during sustained contractions? A) Motor unit recruitment. B) Wave summation. C) Motor unit synchronization. D) Tetanus. Show Answer Correct Answer: B) Wave summation. 34. What equation would accurately allow you to calculate an athlete's maximum heart rate (HR$_{max}$) A) HRmax = 207-(0.6 x age in years). B) HRmax = 208-(0.7 x age in years). C) HRmax = 207-(0.7 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). 35. Which of the following is a characteristic of Type I diabetes? A) Autoimmune destruction of beta cells. B) Insulin resistance. C) Overproduction of insulin. D) High insulin receptor sensitivity. Show Answer Correct Answer: A) Autoimmune destruction of beta cells. 36. 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. 37. Muscle fatigue sets in due to the nonavailability of A) Actin binding sites. B) Calcium. C) Sodium. D) ATP. Show Answer Correct Answer: D) ATP. 38. 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. 39. The body system that takes in food and breaks it down A) Circulatory system. B) Respiratory system. C) Stomach. D) Digestive system. Show Answer Correct Answer: D) Digestive system. 40. When the diaphragm relaxes this creates A) A decrease in chest volume. B) An increase in chest volume. C) No change in air volume. D) An increase in lung capacity. Show Answer Correct Answer: A) A decrease in chest volume. 41. Connect muscle to bone A) Tendon. B) Fascia. C) Rachet strap. D) Neurotransmitter. Show Answer Correct Answer: A) Tendon. 42. 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. 43. 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. 44. Pace maker of the heart A) Purkinjee fibers. B) SA node. C) AV node. D) Bundle of His. Show Answer Correct Answer: B) SA node. 45. In a normal person, what percentage of the cardiac output is dependent on the "atrial kick" ? A) 55%. B) 25%. C) 35%. D) 45%. Show Answer Correct Answer: B) 25%. 46. Abnormal or unusual heart sounds. A) Bradycardia. B) Tachycardia. C) Congestive heart failure (CHF). D) Heart murmurs. Show Answer Correct Answer: D) Heart murmurs. 47. Which thin filament protein bind to Ca during muscle contraction? A) Myosin. B) Troponin. C) Actin. D) Tropomyosin. Show Answer Correct Answer: B) Troponin. 48. How many bones human skeletal system consists A) 207. B) 209. C) 206. D) 204. Show Answer Correct Answer: C) 206. 49. What metabolic pathway primarily fuels the energy needs of fast-twitch glycolytic muscle fibers during high-intensity exercise? A) Lipolysis. B) Oxidative phosphorylation. C) Aerobic respiration. D) Glycolysis. Show Answer Correct Answer: D) Glycolysis. 50. Attached to bones A) Cardiac. B) Smooth. C) Skeletal. D) None of the above. Show Answer Correct Answer: C) Skeletal. 51. 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. 52. 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. 53. 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. 54. What is an example of an isometric exercise? A) Push ups. B) Dead lifts. C) Wall sit. D) The lowering phase of a bench press. Show Answer Correct Answer: C) Wall sit. 55. Gases move from a lower pressure to a higher pressure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 56. A person's lungs are of the same size. A) True. B) False. C) None. D) None. Show Answer Correct Answer: B) False. 57. A normal heart rate in an adult at rest is ..... A) 110. B) 75. C) 125. D) 60. Show Answer Correct Answer: B) 75. 58. XVO2 max decreases approximately how much within 12 days of detraining? A) 15%. B) 2%. C) 25%. D) 8%. Show Answer Correct Answer: D) 8%. 59. The diaphragm contracts and flattens in ..... A) Inhalation. B) Exhalation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Inhalation. 60. Cholecystokinin inhibits A) Pancreatic HCO3-secretion. B) Gastric emptying. C) Contraction of gallbladder. D) Relaxation of sphincter of Oddi. Show Answer Correct Answer: B) Gastric emptying. ← PreviousNext →Related QuizzesCommon Subjects QuizzesClass 12 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books