This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This is a fetal form of hemoglobin A) Alpha 2, gamma 2. B) Alpha 2, delta 2. C) Alpha 2, beta 2. D) Alpha 2, epsilon 2. Show Answer Correct Answer: A) Alpha 2, gamma 2. 2. Which structure contains large amounts of calcium used for muscle? A) Sarcomere. B) Mitochondria. C) Sarcoplasmic reticulum. D) Myofibril. Show Answer Correct Answer: C) Sarcoplasmic reticulum. 3. Which one of the following is a key characteristic of slow twitch muscle fibers? A) They contain large amounts of Mitochondria. B) They are fast to fatigue. C) They are recruited last. D) They contain low numbers of Mitochondria. Show Answer Correct Answer: A) They contain large amounts of Mitochondria. 4. Heparin is a potent anti-coagulant and its action is manifested by A) Prolonged bleeding time. B) Prolonged PT. C) Prolonged PTT. D) All of the above. Show Answer Correct Answer: C) Prolonged PTT. 5. A good example of isometric contraction: A) Cycling through a park. B) Abdominal (Abs) exercises. C) Standing on one foot. D) NOTA. Show Answer Correct Answer: D) NOTA. 6. ..... is important because your body needs nutrients from food and drink to work properly. A) DIGESTION. B) BREATHING. C) EXERCISE. D) RESPIRATION. Show Answer Correct Answer: A) DIGESTION. 7. A patient with tumor secreting abnormal amounts of gastrin (gastrinoma) would be most likely to exhibit which of the following? A) Decreased chief cell exocytosis. B) Duodenal ulceration. C) Increased gastric pH in the period between meals. D) Reduced incidence of gastroesophageal reflux disease. Show Answer Correct Answer: B) Duodenal ulceration. 8. The amount of blood ejected per breathe from left ventricle? A) Tidal volume. B) Cardiac output. C) Stroke volume. D) Vital capacity. Show Answer Correct Answer: C) Stroke volume. 9. The role of the synovial fluid in a synovial joint is to ..... A) Carry around nutrients. B) Lubricate the joint. C) Help with shock absorption. D) Both B and C. Show Answer Correct Answer: D) Both B and C. 10. What is the importance of the liver in digestion? A) The liver produces insulin for blood sugar regulation. B) The liver is responsible for breaking down carbohydrates into glucose. C) The liver is vital for producing bile, processing nutrients, detoxifying substances, and storing essential vitamins. D) The liver absorbs nutrients directly from the stomach. Show Answer Correct Answer: C) The liver is vital for producing bile, processing nutrients, detoxifying substances, and storing essential vitamins. 11. 30-year-old pregnant female was diagnosed with hyperthyroidism due to elevated T3 and T4. When referred to specialist, she is said to be Euthyroid because: A) Wrong blood sample was submitted. B) Absence of Anti-thyroglobulin receptor. C) Elevated protein binding that falsely elevate thyroid hormones. D) Normal level of TSH. Show Answer Correct Answer: C) Elevated protein binding that falsely elevate thyroid hormones. 12. During vigorous exercise, which organ receives a significantly increased proportion of cardiac output? A) Kidneys. B) Brain. C) Skeletal muscles. D) Liver. Show Answer Correct Answer: C) Skeletal muscles. 13. What inhibits SERCA pump? A) Phosphate. B) Phospholamban. C) Protein kinase. D) Epinephrine. Show Answer Correct Answer: B) Phospholamban. 14. When you metabolize a substrate how much energy is turned into heat? A) 20%. B) 30%. C) 40%. D) 50%. E) 60%. Show Answer Correct Answer: E) 60%. 15. This hormone acts on its target tissue/s using inositol 1, 4, 5-triphosphate (IP3) as a second messenger. A) Insulin. B) Atrial natriuretic peptide. C) Parathyroid hormone. D) Thyroid releasing hormone. Show Answer Correct Answer: D) Thyroid releasing hormone. 16. Which of the following pairs of words are not equivalent? A) Systole:Contraction. B) Contraction:Depolarization. C) Diastole:Deploarization. D) Relaxation:Repolarization. Show Answer Correct Answer: C) Diastole:Deploarization. 17. How many bones in phalanges in hand consists? A) 14. B) 18. C) 12. D) 15. Show Answer Correct Answer: A) 14. 18. Which factor would most likely cause vasodilation in local tissues? A) Increased oxygen concentration. B) Decreased carbon dioxide concentration. C) Increased adenosine concentration. D) Decreased temperature. Show Answer Correct Answer: C) Increased adenosine concentration. 19. Which of the following is a long-term adaptation of the cardiovascular system to regular exercise? A) Increased heart rate. B) Increased blood pressure. C) Increased stroke volume. D) Decreased lung capacity. Show Answer Correct Answer: C) Increased stroke volume. 20. When oxygen enters the body, lungs and capillaries and then CO2 leaves the body-this is known as: A) Cellular Respiration. B) Internal Respiration. C) External Respiration. D) None of the above. Show Answer Correct Answer: C) External Respiration. 21. Which part of the heart is responsible for regulating heart beat? A) Left Ventricle. B) SinoAtrial Node. C) AtrioVentricular Node. D) Myogenic Node. Show Answer Correct Answer: B) SinoAtrial Node. 22. The shoulder blade is A) Scapula. B) Clavicle. C) Sternum. D) Ulna. Show Answer Correct Answer: A) Scapula. 23. Protein involved in muscular contraction A) Actin. B) Myosin. C) Both. D) None. Show Answer Correct Answer: C) Both. 24. The purkinje fibres would be responsible for which stage of the cardiac cycle? A) Ventricular diastole. B) Atrial systole. C) Atrial diastole. D) Ventricular systole. Show Answer Correct Answer: D) Ventricular systole. 25. Endurance training improves acid-base balance by: A) Increasing lactic acid production. B) Decreasing NADH shuttles. C) Changing LDH isoform. D) Reducing mitochondrial number. Show Answer Correct Answer: C) Changing LDH isoform. ← 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