This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physical Education Chapter 9 Physiology And Exercise – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physical Education Chapter 9 Physiology And Exercise Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is true about increased mitochondrial volume? A) Mitochondrial volume decreases cytosolic [ADP]. B) Increased lactate and H+ formation. C) Increases PC depletion. D) None of the above. Show Answer Correct Answer: A) Mitochondrial volume decreases cytosolic [ADP]. 2. Increased capillarization in trained muscles results in: A) Slower oxygen diffusion. B) Improved oxygen delivery and waste removal. C) Decreased mitochondrial volume. D) None of the above. Show Answer Correct Answer: B) Improved oxygen delivery and waste removal. 3. A friend of yours is having a panic attack and is hyperventilating. What is the best way to bring that friend back to normal levels in terms of blood pH? A) He can hyperventilate in the open air. B) He can hypoventilate in the open air. C) He can breath slowly into a bag. D) He can hold his breath. Show Answer Correct Answer: C) He can breath slowly into a bag. 4. Endurance training increases stroke volume primarily by: A) Decreasing plasma volume. B) Increasing afterload. C) Increasing preload. D) Decreasing contractility. Show Answer Correct Answer: C) Increasing preload. 5. What are the components of the central nervous system? A) Stomach, Intestines. B) Heart, Lungs. C) Kidneys, Liver. D) Brain, Spinal Cord. Show Answer Correct Answer: D) Brain, Spinal Cord. 6. The lower respiratory tract comprises of A) Pharynx, larynx, bronchi. B) Pharynx, larynx, lungs. C) Larynx, trachea, lungs. D) Trachea, bronchi, lungs. Show Answer Correct Answer: D) Trachea, bronchi, lungs. 7. When your body reaches a pH higher than 8, you would be considered to have acidosis. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. A 42-year-old man develops a gastric carcinoma affecting the proximal third of this stomach. He is scheduled for a partial gastrectomy of the affected region. Which of the following processes will be most affected by surgery? A) Receptive relaxation. B) Peristalsis. C) Retropulsion. D) Segmentation. Show Answer Correct Answer: A) Receptive relaxation. 9. What does Henry's Law tell us? A) Gasses dissolves in liquids in proportion to partial pressure. B) Gasses dissolves in solids in proportion to partial pressure. C) You can add up the partial pressures to get the total pressure. D) You can multiply the partial pressures to get the total pressure. Show Answer Correct Answer: A) Gasses dissolves in liquids in proportion to partial pressure. 10. What role do Z discs play in sarcomeres? A) Attach myosin. B) Define boundaries and align filaments. C) Store calcium. D) Produce energy. Show Answer Correct Answer: B) Define boundaries and align filaments. 11. Which part of respiratory system is affected by exercise? A) Lungs. B) Wind pipe. C) Bronchi. D) All of the above. Show Answer Correct Answer: D) All of the above. 12. Synthesis of ribosomes are done here A) Mitochondria. B) Endoplasmic Reticulum. C) Lysosome. D) Nucleolus. Show Answer Correct Answer: D) Nucleolus. 13. Which of the following correlate with the sounds of the cardiac cycle heard with a stethoscope? A) Atrial contraction. B) The opening of valves. C) The closing of valves. D) Electrical impulse conduction. Show Answer Correct Answer: C) The closing of valves. 14. 'The volume of air inspired or expired per minute' is referred to as the ..... A) Pulmonary ventilation. B) Tidal volume. C) Breathing rate. D) Vital capacity. E) Residual volume. Show Answer Correct Answer: A) Pulmonary ventilation. 15. An increase in this parameter will decrease blood pressure: A) Total peripheral resistance. B) Afterload. C) Venous return. D) Aldosterone. Show Answer Correct Answer: B) Afterload. 16. Which of the following has the thickest wall A) Right ventricle. B) Left atrium. C) Left ventricle. D) Right atrium. Show Answer Correct Answer: C) Left ventricle. 17. When The bone is broken into many pieces at one place or at different places is called as- A) Comminuted fracture. B) Simple fracture. C) Compound fracture. D) Green stick fracture. Show Answer Correct Answer: A) Comminuted fracture. 18. The point at where a muscle attaches to a bone for movement is called the ..... A) Origin. B) Attachment. C) Insertion. D) Agonist. Show Answer Correct Answer: C) Insertion. 19. Under maximum stress, how much cortisol is produced per day? A) 50 mg. B) 150 mg. C) 250 mg. D) 350 mg. Show Answer Correct Answer: B) 150 mg. 20. The role of a flat bone includes ..... A) Provide a surface area for muscle attachment. B) Protect vital organs. C) Produce red blood cells. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. Transport of D-and L-glucose proceeds at the same rate down an electrochemical gradient by which of the following processes? A) Simple diffusion. B) Facilitated diffusion. C) Primary active transport. D) Cotransport. Show Answer Correct Answer: A) Simple diffusion. 22. What distinguishes Type IIb muscle fibers from Type I muscle fibers? A) Enhanced endurance. B) More myoglobin. C) Greater power output and speed. D) Lower glycogen stores. Show Answer Correct Answer: C) Greater power output and speed. 23. During exercise does the A-V O2 difference increase or decrease? A) Increase. B) Decrease. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increase. 24. ATP stands for what? A) Aerobic Tri-potassium. B) Adenosine Tri-phosphate. C) Adrenaline Twitch Protein. D) Anaerobic Triple Phosphate. Show Answer Correct Answer: B) Adenosine Tri-phosphate. 25. Is the air sac which is present around terminal bronchi and where exchange of gases takes place A) Bronchus. B) Bronchi. C) Cilia. D) Alveoli. Show Answer Correct Answer: D) Alveoli. ← 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