This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 17 Breathing And Exchange Of Gases – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is symptoms of Emphysema? A) Hemorrhage of bronchioles. B) Increase in number of alveoli. C) Infection of microbacterium tubeculi. D) Inflammation of Alveoli. Show Answer Correct Answer: D) Inflammation of Alveoli. 2. Conduction part of the respiratory system is formed: A) From external nostrils up to the alveoli. B) From external nostrils up to the terminal bronchioles. C) From external nostrils up to the duct of alveoli. D) From external nostrils upto the alveoli. Show Answer Correct Answer: B) From external nostrils up to the terminal bronchioles. 3. After forceful inspiration, the amount of air that can be breathed out with maximum forced expiration is equal to A) TV + RV + ERV. B) IRV +TV + ERV. C) IRV + RV + ERV. D) IRV + ERV + TV + RV. Show Answer Correct Answer: B) IRV +TV + ERV. 4. What is the role of the diaphragm during inspiration? A) It relaxes. B) It contracts. C) It expands. D) It compresses. Show Answer Correct Answer: B) It contracts. 5. The movement by diffusion of oxygen and carbon dioxide across a membrane A) Ventilation. B) Breathing. C) Gas exchange. D) Respiration. Show Answer Correct Answer: C) Gas exchange. 6. During inspiration: A) Diaphragm contracts and EICM relaxes. B) Diaphragm relaxes and EICM contracts. C) Diaphragm contracts and EICM contracts. D) Both diaphragm and EICM relaxes. Show Answer Correct Answer: C) Diaphragm contracts and EICM contracts. 7. Cleans, moistens, and warms the air A) Trachea. B) Larynx. C) Nasal passage. D) Windpipe. Show Answer Correct Answer: C) Nasal passage. 8. Asthma may be attributed to: A) Bacterial infection of the lungs. B) Allergic reaction of the mast cells in the lungs. C) Inflammation of the trachea. D) Accumulation of fluid in the lungs. Show Answer Correct Answer: B) Allergic reaction of the mast cells in the lungs. 9. Which of the following is NOT the structure of haemoglobin? A) Each haemoglobin molecule contains 4 haem group. B) Haemoglobin is a quaternary structure. C) Every each haem group in haemoglobin can bind with 4 molecule of oxygen. D) Each haemoglobin has 2 $\alpha$-chain and 2 $\beta$-chain polypeptide subunits. Show Answer Correct Answer: C) Every each haem group in haemoglobin can bind with 4 molecule of oxygen. 10. Which is the site of actual diffusion of O2 and CO2 between blood and atmospheric air: A) Exchange part of respiratory system. B) Conducting part of respiratory system. C) Respiratory part of respiratory system. D) Both a and c. Show Answer Correct Answer: D) Both a and c. 11. Body surface participates in exchange of gases in which of the following organisms A) Sponges, earthworm, spiders. B) Coelentrates, flatworms, aquatic arthropods. C) Sponges, coelenterates, flatworm. D) Sponges, hydra, insects. Show Answer Correct Answer: C) Sponges, coelenterates, flatworm. 12. Transport of carbon dioxide from tissue to respiratory surface is by A) Blood plasma and RBC. B) Blood plasma. C) RBC. D) RBC and WBC. Show Answer Correct Answer: A) Blood plasma and RBC. 13. What is chloride shift? A) Movement of chloride ion from plasma to WBC. B) Movement of chloride ion from plasma to RBC. C) Movement of chloride ion from WBC to plasma. D) Movement of chloride ion from RBC to plasma. Show Answer Correct Answer: B) Movement of chloride ion from plasma to RBC. 14. People who have migrated from the planes to an area adjoining Rohtang pass about six months back ..... A) Have more RBCs and their haemoglobin has a lower binding affinity to O2. B) Are not physically fit to play games like football. C) Suffer from altitude sickness with symptoms like nausea, fatigue, etc. D) Have the usual RBC count, but their haemoglobin has very high binding affinity to O2. Show Answer Correct Answer: A) Have more RBCs and their haemoglobin has a lower binding affinity to O2. 15. Visiting high mountains may cause altitude sickness in men living in plain areas. Prime cause of this is A) Excess of CO2 in blood. B) Decreased efficiency of haemoglobin. C) Decreased partial pressure of oxygen. D) Decreased efficiency of red blood cells. Show Answer Correct Answer: C) Decreased partial pressure of oxygen. 16. The conducting part of the respiratory system has functions. A) Filter, warm and moisten the air. B) Gaseous exchange. C) Filtering the air only. D) Warm the air. Show Answer Correct Answer: A) Filter, warm and moisten the air. 17. Volume of air remaining in the lungs even after a forcible expiration is A) Residual volume. B) Expiratory capacity. C) Vital Capacity. D) Inspiratory capacity. Show Answer Correct Answer: A) Residual volume. 18. Which of the following statements about the mechanism of ventilation / breathing is false? A) As the diaphragm relaxes, air is expelled from the respiratory system. B) During inspiration the lungs act as suction pump. C) Inspiration is a passive and expiration is an active process. D) For quiet breathing external intercostal muscles and diaphragm play an important role. Show Answer Correct Answer: C) Inspiration is a passive and expiration is an active process. 19. Which gas is primarily transported by hemoglobin in red blood cells? A) Carbon Dioxide. B) Oxygen. C) Hydrogen. D) Nitrogen. Show Answer Correct Answer: B) Oxygen. 20. Where is the HHb present? A) At the respiratory surface in RBC of blood. B) Blood surrounding tissues cells. C) Respiratory surface blood plasma. D) Blood plasma surrounding tissue. Show Answer Correct Answer: A) At the respiratory surface in RBC of blood. 21. Part of brain responsible for Inspiration A) Medulla. B) Pons. C) Alveoli. D) Thalamus. Show Answer Correct Answer: A) Medulla. 22. Assertion:The lungs are situated in thoracic chamber which is anatomically an air-tight chamber.Reason:Such an arrangement is essential to avoid any change in pulmonary volume. A) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. B) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C) If Assertion is true but Reason is false. D) If both Assertion and Reason are false. Show Answer Correct Answer: C) If Assertion is true but Reason is false. 23. Carbon monoxide has greater affinity for haemoglobin as compared to oxygen ..... A) 1000 times. B) 200 times. C) 20 times. D) 2 times. Show Answer Correct Answer: B) 200 times. 24. Which addictive component of tobacco smoke causes an increase in blood pressure? A) Carbon monoxide. B) Carcinogens. C) Nicotine. D) Tar. Show Answer Correct Answer: C) Nicotine. 25. If the tidal volume is 500 ml and dead space volume is 150 ml .What will be the alveolar ventilation per minute? A) 6000-8000ml. B) 2500-3000ml. C) 4200-5600 ml. D) 3400 ml. Show Answer Correct Answer: C) 4200-5600 ml. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 1Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 2Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 3Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 4Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 5Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 6Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 7Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 9Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 10Class 11 Biology Chapter 17 Breathing And Exchange Of Gases Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books