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 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which one of these is NOT a cause of stroke volume drift (cardiovascular drift)? A) Venous return decreasing. B) Plasma volume decreasing (sweating). C) Decreasing core temperature. D) Skin blood flow increasing. Show Answer Correct Answer: C) Decreasing core temperature. 2. Which of the following is a collapsed lung A) Cyanosis. B) Emphysema. C) Cystic fibrosis. D) Pneumothorax. E) COPD. Show Answer Correct Answer: D) Pneumothorax. 3. What is the primary function of insulin? A) Stimulate glucagon secretion. B) Increase uptake of glucose and amino acids. C) Decrease glucose uptake in tissues. D) Increase blood glucose levels. Show Answer Correct Answer: B) Increase uptake of glucose and amino acids. 4. What causes air to rush into your lungs? A) The pressure of your diaphragm pushing on your pleural sacs (lungs). B) The pressure difference inside and outside of the lungs. C) The pressure being equal between the inside and outside of the lungs. D) A stiff breeze hitting you in the back of your nasal cavity. Show Answer Correct Answer: B) The pressure difference inside and outside of the lungs. 5. What is the role of the nasal cavity in respiration? A) The nasal cavity filters, warms, and moistens the air before it enters the lungs. B) The nasal cavity is responsible for gas exchange in the lungs. C) The nasal cavity produces mucus to trap pathogens and particles. D) The nasal cavity regulates blood flow to the lungs. Show Answer Correct Answer: A) The nasal cavity filters, warms, and moistens the air before it enters the lungs. 6. Why is there an increase of blood flow to your skin when exercise intensity increases? A) It is to prevent new acne from forming. B) It is to bring the blood closer to the surface to vent heat and cool the body's core temperature. C) It is to bring blood away from the kidneys and prevent urination. D) It is to allow the blood to use the sun's rays to heat up the blood and ultimately the core temperature. Show Answer Correct Answer: B) It is to bring the blood closer to the surface to vent heat and cool the body's core temperature. 7. During short bursts of intense exercise, muscles will use which of the following for fuel? A) Glucose. B) Glycogen. C) Creatine phosphate. D) Fat. Show Answer Correct Answer: C) Creatine phosphate. 8. The area located in the centre of the sarcomare containing both actin and myosin is called A) I Band. B) Z Band. C) A Band. D) S Band. Show Answer Correct Answer: C) A Band. 9. What is the significance of the pleural fluid? A) It helps in gas exchange in the lungs. B) It reduces friction between the pleurae during breathing and helps maintain lung expansion. C) It acts as a barrier against infections in the lungs. D) It increases the pressure in the thoracic cavity. Show Answer Correct Answer: B) It reduces friction between the pleurae during breathing and helps maintain lung expansion. 10. ..... are mainly sugars and starches that the body breaks down into glucose. A) PROTEINS. B) FATS. C) CARBOHYDRATES. D) VITAMINS. Show Answer Correct Answer: C) CARBOHYDRATES. 11. What is the significance of the digestive enzymes? A) They help in the production of hormones. B) Digestive enzymes are crucial for breaking down food into nutrients that the body can absorb. C) They are responsible for the absorption of oxygen. D) Digestive enzymes are used for energy storage. Show Answer Correct Answer: B) Digestive enzymes are crucial for breaking down food into nutrients that the body can absorb. 12. Cardiac output of the right side of the heart is what percentage of the cardiac output of the left side of the heart? A) 100%. B) 25%. C) 75%. D) 50%. Show Answer Correct Answer: A) 100%. 13. When we exercise our minute volume ..... A) A) Increases. B) B) Decreases. C) C) Remains the same. D) None of the above. Show Answer Correct Answer: A) A) Increases. 14. The vocal chord of the respiratory system is A) Trachea. B) Windpipe. C) Larynx. D) Pharynx. Show Answer Correct Answer: C) Larynx. 15. Which muscle fibers are used in endurance exercise? A) Type III. B) Type I. C) Type IIB. D) Type IIA. Show Answer Correct Answer: B) Type I. 16. What is the primary role of the sarcolemma? A) Stores calcium. B) Conducts electrical impulses. C) Site of ATP production. D) Provides structural support. Show Answer Correct Answer: B) Conducts electrical impulses. 17. Regular exercise over a period of time Leeds to- A) Less blood volume. B) Less stroke volume. C) Decreased heart size. D) Slower heart rate. Show Answer Correct Answer: D) Slower heart rate. 18. Actin filaments bound to the edges of the sarcomere, in zig zag structures also known as the ..... A) M-Line. B) H-Zone. C) Z-Disc. D) A-Band. Show Answer Correct Answer: C) Z-Disc. 19. Where is the pleural cavity located? A) Between the parietal pleura and the visceral pleura. B) In the abdominal cavity. C) Within the mediastinum. D) Surrounding the heart. Show Answer Correct Answer: A) Between the parietal pleura and the visceral pleura. 20. Following does NOT influence Fitness A) Height. B) Body fat content. C) Heart rate. D) BMI. Show Answer Correct Answer: A) Height. 21. The principle that training adaptations are lost when training stops is called: A) Reversibility. B) Progression. C) Specificity. D) Individual differences. Show Answer Correct Answer: A) Reversibility. 22. Which is not a job of the respiratory system? A) Taking in carbon dioxide. B) Moisten air. C) Transport glucose. D) Taking in oxygen. Show Answer Correct Answer: C) Transport glucose. 23. What would be a typical figure for maximum cardiac output of an elite athlete? A) 20l. B) 5000ml. C) 220-age. D) 40, 0000ml. Show Answer Correct Answer: D) 40, 0000ml. 24. Hypertrophy Takes Place A) In the muscles. B) In the heart and muscles. C) In the heart, muscles and blood vessels. D) All your musculoskeletal system. Show Answer Correct Answer: B) In the heart and muscles. 25. The body system that transports molecules to and from all cells of the body A) Respiratory system. B) Circulatory system. C) Digestive system. D) Oxygen. Show Answer Correct Answer: B) Circulatory system. 26. Which type of fracture does this definition describe? "A fracture where the bone is broken and damages the internal organs" A) Impacted. B) Complicated. C) Simple. D) Greenstick. Show Answer Correct Answer: B) Complicated. 27. What connects your bones to muscles? A) Tendon. B) Cartilage. C) Ligament. D) Joint. Show Answer Correct Answer: A) Tendon. 28. How can Type 2 Diabetes Mellitus be improved? A) By weight loss and adjusting calorie intake. B) By increasing sugar intake. C) By avoiding exercise. D) By taking only insulin. Show Answer Correct Answer: A) By weight loss and adjusting calorie intake. 29. As stroke volume decreases, heart rate increases to keep cardiac output constant. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. A tuft of capillaries enclosed by Bowman capsule is called ..... A) Vasa recta. B) Glomerulus. C) Nephron. D) Renal corpuscle. Show Answer Correct Answer: B) Glomerulus. 31. These are the minerals and vitamins. A) MACRO NUTRIENTS. B) MICRO NUTRIENTS. C) All the above. D) None of the above. Show Answer Correct Answer: B) MICRO NUTRIENTS. 32. What muscles are used in breathing in and breathing out? A) Diaphragm and intercostals. B) Diaphragm and lungs. C) Lungs and ribs. D) Lungs and diaphragm. Show Answer Correct Answer: A) Diaphragm and intercostals. 33. Why are the walls of the left ventricle thicker than that of the right ventricle? A) The left ventricle must force blood into all the capillaries of the lungs. B) The left ventricle doesn't skip leg day. C) This is false, the walls of the right ventricle are thicker. D) Blood from the left ventricle is pumped throught the entire body. Show Answer Correct Answer: D) Blood from the left ventricle is pumped throught the entire body. 34. In disease conditions, however, such as hypertension, afterload can ..... significantly, causing a ..... in stroke volume. A) Decrease, decrease. B) Decrease, increase. C) Increase, decrease. D) Increase, increase. Show Answer Correct Answer: C) Increase, decrease. 35. A man develops an immune system disorder that attacks his schwann cells and destroys the myelin sheaths of his nerve cells. What will immediately happen to his nervous tissue as a direct result? A) Nerve cell membranes will lose their ability to repolarize. B) Acetylcholine will stop being released at the nerve cell synapses. C) Axons will deliver nerve cell impulses at a much slower rate. D) Dendrites will no longer be able to depolarize. Show Answer Correct Answer: C) Axons will deliver nerve cell impulses at a much slower rate. 36. What does capital Q stand for? A) Heart Rate. B) Cardiac Output. C) Stoke Volume. D) Lung Capacity. Show Answer Correct Answer: B) Cardiac Output. 37. Pulse wave velocity A) Is the speed at which the blood moves within the vessels. B) Is greatly affected by the stiffness of the vessels. C) Does not change with age for a given individual. D) None of the above. Show Answer Correct Answer: B) Is greatly affected by the stiffness of the vessels. 38. During exercises which of the following happens immediately? A) Weight increases. B) Pulse slows down. C) Blood pressure increases. D) Respiration decreases. Show Answer Correct Answer: C) Blood pressure increases. 39. A particular medication works by blocking the receptor sites on the post-synaptic neuron. Which structure in synapse is being inhibited from binding to a receptor? A) The calcium channel. B) The neurotransmitter. C) The vesicle. D) The pre-synaptic neuron. Show Answer Correct Answer: B) The neurotransmitter. 40. Which of the following sets of ions are needed in the muscle fiber to eventually cause a contraction? A) Sodium and potassium. B) Calcium and magnesium. C) Sodium and calcium. D) Sodium and magnesium. Show Answer Correct Answer: C) Sodium and calcium. 41. When particles move from areas of high concentration to areas less concentrated, this has taken place. A) Diffusion. B) Endocytosis. C) Photosynthesis. D) Mitosis. Show Answer Correct Answer: A) Diffusion. 42. Even if your oxygen and amino acids are at normal levels, what else do your cells need to make energy? A) Glucose molecules. B) Starch molecules. C) Atoms. D) Protein molecules. Show Answer Correct Answer: A) Glucose molecules. 43. An injury to the tendon, muscles or their junction is- A) Laceration. B) Strain. C) Sprain. D) Fracture. Show Answer Correct Answer: B) Strain. 44. The ribcage surrounds the chest and protects the lungs during exercise. A) Anatomy. B) Physiology. C) Both. D) None of the Above. Show Answer Correct Answer: C) Both. 45. How many short bones together forms thoracic? A) 15. B) 7. C) 12. D) 11. Show Answer Correct Answer: C) 12. 46. The part where the trachea bifurcates ( divide ) into right and left bronchi is called A) Cartilage. B) Carina. C) Vocal folds. D) None of the above. Show Answer Correct Answer: B) Carina. 47. In a 28 days menstrual cycle, the ovulation occurs on the ..... th day. A) 14. B) 13. C) 16. D) 12. Show Answer Correct Answer: A) 14. 48. Which of the following is the correct order of the intrinsic conduction system? A) AV NODE-SA NODE-PURKINJE FIBERS-BUNDLES OF HIS. B) SA NODE-AV NODE-PURKINJE FIBERS-BUNDLES OF HIS. C) AV NODE-SA NODE-BUNDLES OF HIS-PURKINJE FIBERS. D) SA NODE-AV NODE-BUNDLES OF HIS-PURKINJE FIBERS. Show Answer Correct Answer: D) SA NODE-AV NODE-BUNDLES OF HIS-PURKINJE FIBERS. 49. Glycolysis occurs in ..... A) Endoplasmic reticulum. B) Chloroplast. C) Mitochondria. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 50. The Primary to drive to breath A) Decrease Potassium in the arterial blood. B) Decrease Oxygen in the arterial blood. C) Increase Nitrogen in the arterial blood. D) Increase Carbon Dioxide levels in the arterial blood. Show Answer Correct Answer: D) Increase Carbon Dioxide levels in the arterial blood. 51. What does starch get broken down into? A) Oxygen. B) Glucose. C) Proteins. D) Amino acids. Show Answer Correct Answer: B) Glucose. 52. Which of the following steps occurs last in this series? A) Calcium enters the neuron and attaches to synaptic vesicles that carry acetylcholine. B) Sodium enters and an action potential occurs across the sarcolemma. C) Calcium attaches to troponin and causes a change in the shape of the tropomyosin. D) The myosin head binding sites are exposed. Show Answer Correct Answer: D) The myosin head binding sites are exposed. 53. When you kick a soccer ball forward, which muscle group is mainly responsible for extending your knee? A) Hamstrings. B) Gluteus maximus. C) Calf muscles. D) Quadriceps. Show Answer Correct Answer: C) Calf muscles. 54. Targets of the autonomic nervous system include all of the following except ..... A) Cardiac muscle. B) Endocrine glands. C) Skeletal muscle. D) Exocrine glands. Show Answer Correct Answer: C) Skeletal muscle. 55. The immediate source of energy is A) Fat. B) Carbohydrate. C) Protein. D) ATP. Show Answer Correct Answer: D) ATP. 56. The three primary factors that determine the stroke volume are ..... A) Preload, Afterload, Overload. B) Preload, Contractility, Overload. C) Preload, Afterload, Contractility. D) Conractility, Afterload, Overload. Show Answer Correct Answer: C) Preload, Afterload, Contractility. 57. What movement happens in Hinge joint? A) Circumduction. B) Rotation. C) Flexion and extension. D) Adduction and Abduction. Show Answer Correct Answer: C) Flexion and extension. 58. What is the function of the diaphragm in respiration? A) It helps in the exchange of gases in the lungs. B) It contracts to create a vacuum that pulls air into the lungs during inhalation. C) It regulates the temperature of the air entering the lungs. D) It prevents food from entering the trachea during swallowing. Show Answer Correct Answer: B) It contracts to create a vacuum that pulls air into the lungs during inhalation. 59. Which of the following statements concerning the role of Ca2+ in the contraction of skeletal muscle is correct? A) The mitochondria act as a store of Ca2+ for the contractile process. B) Ca2+ entry across the plasma membrane is important in sustaining the contraction of skeletal muscle. C) A rise in intracellular Ca2+allows actin to interact with myosin. D) The tension of a skeletal muscle fibre is partly regulated by G proteins. Show Answer Correct Answer: C) A rise in intracellular Ca2+allows actin to interact with myosin. 60. Which factor is a major contributor to slower healing responses in older individuals? A) Age. B) High carotene. C) High melanin. D) Low hemoglobin. Show Answer Correct Answer: A) Age. ← 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books