This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is absent in Animal cell? A) Chloroplast. B) Cell membrane. C) Centrioles. D) Vacuole. Show Answer Correct Answer: A) Chloroplast. 2. 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. 3. Training reduces heart rate during exercise by: A) Increasing sympathetic nervous system activity. B) Decreasing stroke volume. C) Improving muscle homeostasis. D) Reducing capillary density. Show Answer Correct Answer: C) Improving muscle homeostasis. 4. 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) Dendrite. B) Myelin sheath. C) Synaptic vesicle. D) Axon. Show Answer Correct Answer: D) Axon. 5. This would cause a shift to the right in the oxygen-hemoglobin dissociation curve? A) Increase in pH. B) Decrease in CO2. C) Decrease in temperature. D) Exercise. Show Answer Correct Answer: D) Exercise. 6. Which of the following is NOT a muscle function? A) Movement of skeleton. B) Heat generation. C) Transport substances around body. D) Moves neurons around body. Show Answer Correct Answer: D) Moves neurons around body. 7. Which of the following is not a component of a thin filament? A) Actin. B) Myosin. C) Troponin. D) Tropomyosin. Show Answer Correct Answer: B) Myosin. 8. Which muscle fiber type is characterized by a high capacity for aerobic metabolism and greater endurance during prolonged activities? A) Type I. B) Type IIa. C) Type IIb. D) Type III. Show Answer Correct Answer: A) Type I. 9. Which is the extremely potent vasoconstrictor in RAAS System A) Renin. B) Angiotensin-I. C) Angiotensin-II. D) ACE. Show Answer Correct Answer: C) Angiotensin-II. 10. The reason why tricuspid and bicuspid valves are closed is A) Ventricular relaxation. B) Ventricular filling. C) Attempted backflow of blood into the atria. D) Atrial systole. Show Answer Correct Answer: C) Attempted backflow of blood into the atria. 11. 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. 12. The circulatory system works with the ..... system to provide our body with oxygen. A) Respiratory. B) Digestive. C) Muscular. D) Skeletal. Show Answer Correct Answer: A) Respiratory. 13. Which of the following terms refers to myocardial relaxation or diastole? A) Inotropy. B) Chronotropy. C) Dromotropy. D) Lusitropy. Show Answer Correct Answer: D) Lusitropy. 14. What is function of the axon terminals? A) Create myelin. B) Conduct electrical implulses. C) Releases the neurotransmitters of the post synaptic cell. D) Releases the neurotransmitters of the presynaptic cell. Show Answer Correct Answer: D) Releases the neurotransmitters of the presynaptic cell. 15. 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. 16. What is a leukocyte? A) A red blood cell. B) A white blood cell. C) A neuron. D) A platelet. Show Answer Correct Answer: B) A white blood cell. 17. Which of the following characteristics is shared by simple and facilitated diffusion of glucose? A) Occurs down an electrochemical gradient. B) Is saturable. C) Requires metabolic energy. D) Is inhibited by the presence of galactose. Show Answer Correct Answer: A) Occurs down an electrochemical gradient. 18. 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. 19. Which organ in the body produces insulin? A) Pancreas. B) Liver with extra enzymes. C) Stomach after digestion. D) Heart during exercise. Show Answer Correct Answer: A) Pancreas. 20. In the absence of acrosome the sperm ..... A) Cannot penetrate the egg. B) Cannot get energy. C) Cannot get food. D) Cannot swim. Show Answer Correct Answer: A) Cannot penetrate the egg. 21. Heart of Heart is A) AV Node. B) SA Node. C) Bundle of His. D) Purkinji Fibers. Show Answer Correct Answer: B) SA Node. 22. 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) Normal acid-base status. B) Compensated metabolic acidosis. C) Partly compensated respiratory acidosis. D) Normal anion gap metabolic acidosis. Show Answer Correct Answer: A) Normal acid-base status. 23. Freely movable joints are called as A) Free joints. B) Synovial joints. C) Psynovial joints. D) Hinge joint. Show Answer Correct Answer: B) Synovial joints. 24. 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. 25. Involuntary A) Skeletal. B) Cardiac. C) Smooth. D) Smooth and cardiac. Show Answer Correct Answer: D) Smooth and cardiac. ← 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