This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which set of ions are necessary for the nerve impulse conduction? A) Sodium and potassium ions. B) Sodium and calcium ions. C) Calcium and potassium ions. D) Sodium and magnesium ions. Show Answer Correct Answer: A) Sodium and potassium ions. 2. Within the first six days of endurance training, plasma volume increases by approximately: A) 5%. B) 11%. C) 20%. D) 30%. Show Answer Correct Answer: B) 11%. 3. What is the name give to the thin protein filaments within the muscle contractile unit? A) Myosin. B) Actin. C) Myoglobin. D) Haemoglobin. Show Answer Correct Answer: B) Actin. 4. What describes the roles of actin and myosin during contraction? A) Both shorten. B) Both catalyze reactions. C) Actin is disassembled by myosin. D) Cross-bridges form/break to shorten sarcomeres. Show Answer Correct Answer: D) Cross-bridges form/break to shorten sarcomeres. 5. Which contract in unison?? A) Top chambers, then bottom chambers. B) Right Chambers, then the Left Chambers. C) All four chambers beat in unison. D) None of the above. Show Answer Correct Answer: A) Top chambers, then bottom chambers. 6. How many lungs are there in the human body A) 1.0. B) 2.0. C) 3.0. D) 4.0. Show Answer Correct Answer: B) 2.0. 7. Which factor determines the amount of melanin activity in an area? A) The length of melanocyte tentacles and the number of keratinocytes. B) The number of melanocytes. C) Hemoglobin levels. D) The length of melanocyte tentacles only. Show Answer Correct Answer: A) The length of melanocyte tentacles and the number of keratinocytes. 8. How long does the inflammatory phase last? A) One to four days after the injury. B) Two to three weeks after the injury. C) A month after the injury. D) Years after the injury. Show Answer Correct Answer: A) One to four days after the injury. 9. What causes fatigue in a muscle? A) The build up of the bicarbonate ion in a muscle. B) The build up of lactic acid in a muscle due to lack of sufficient oxygen. C) The muscle becomes "tired". D) The muscle has an influx of too many potassium ions. Show Answer Correct Answer: B) The build up of lactic acid in a muscle due to lack of sufficient oxygen. 10. Acetylcholinesterase A) A word that you can use to sound smart. B) One of Este's favorite words. C) Breaks down acetylcholine to stop muscle contraction. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. Rapid heart rate (over 100 bpm) A) Tachycardia. B) Bradycardia. C) All the above. D) None of the above. Show Answer Correct Answer: A) Tachycardia. 12. The chamber in the heart which is responsible for pumping oxygenated blood out the aorta to the body is the ..... A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 13. What is the process where gases are exchanged with tissue cells? A) External Respiration. B) Internal Respiration. C) Pulmonary Respiration. D) Respiratory Gas Transport. Show Answer Correct Answer: B) Internal Respiration. 14. Which of these are the correct pathway for air into the lungs? A) Nasal/mouth, Trachea, Bronchioles, Alveoli. B) Nasal/Mouth, Bronchi, Bronchioles, Alveoli. C) Trachea, Bronchi, Bronchioles, Alveoli. D) Nasal/Mouth, Trachea, Bronchi, Bronchioles, Alveoli. Show Answer Correct Answer: D) Nasal/Mouth, Trachea, Bronchi, Bronchioles, Alveoli. 15. Stroke volume will decrease as the exercise intensity increases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 16. Pathogen presented by MHC Class I molecules A) Ascaris lumbricoides. B) Influenza virus. C) Mycobacterium tuberculosis. D) Streptococcus pneumonia. Show Answer Correct Answer: B) Influenza virus. 17. The flat skull bones are in numbers A) 20.0. B) 21.0. C) 22.0. D) 19.0. Show Answer Correct Answer: C) 22.0. 18. The increase in fatty acid binding proteins with training enhances: A) Glucose uptake. B) Fatty acid transport into muscle. C) Lactic acid removal. D) Protein synthesis. Show Answer Correct Answer: B) Fatty acid transport into muscle. 19. Infection of the lungs where alveoli are flooded with bacteria and WBCs: A) Pneumonia. B) Pleuritis/pleurisy. C) Roarers. D) Pulmonary edema. Show Answer Correct Answer: A) Pneumonia. 20. Which chamber of the heart is responsible for pumping oxygenated blood to the systemic circulation? A) Right atrium. B) Left ventricle. C) Right ventricle. D) Left atrium. Show Answer Correct Answer: B) Left ventricle. 21. Lymph nodes swell because: A) Invading pathogens attack them. B) High salt content. C) Overexertion such as exercise. D) White blood cells multiply within them. Show Answer Correct Answer: D) White blood cells multiply within them. 22. Which is NOT a primary signal for exercise adaptation? A) Mechanical stretch. B) Calcium. C) AMP/ATP ratio. D) Insulin. Show Answer Correct Answer: D) Insulin. 23. Vital capacity of lung is ..... A) TV+IRV+ERV. B) TV+IRV+RV. C) TV+ERV. D) IRV+ERV. Show Answer Correct Answer: A) TV+IRV+ERV. 24. Which year in Indian cricket team won the 1st world Cup? A) 1984. B) 1983. C) 2011. D) 1986. Show Answer Correct Answer: B) 1983. 25. Which of the following converts pepsinogen to the active form of pepsin in the stomach? A) Mucus. B) Gastrin. C) HCL. D) Chief cells. Show Answer Correct Answer: C) HCL. ← 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