This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 40 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following statement is TRUE about human lungs? A) The right lung is smaller than the left lung. B) The left lung is smaller than the right lung. C) Both lungs are of the same size. D) Both lungs have the same number of lobes. Show Answer Correct Answer: B) The left lung is smaller than the right lung. 2. Which best describes the process of photosynthesis? A) Carbon dioxide and oxygen are converted into glucose and water. B) Carbon dioxide and water are converted into glucose and oxygen. C) Oxygen and glucose are converted into carbon dioxide and water. D) Oxygen and water are converted into carbon dioxide and glucose. Show Answer Correct Answer: B) Carbon dioxide and water are converted into glucose and oxygen. 3. Which compound is formed from oxygen and haemoglobin? A) Oxyhaemoglobin. B) Carboxyhaemoglobin. C) Deoxyhaemoglobin. D) Methaemoglobin. Show Answer Correct Answer: A) Oxyhaemoglobin. 4. The main purpose of Photosynthesis is for plants to make food for themselves. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. The movement of the ribs is ..... during the process of exhalation. A) Up and inwards. B) Down and inwards. C) Up and outwards. D) Down and outwards. Show Answer Correct Answer: B) Down and inwards. 6. What happens to your pulse when you exercise? A) It increases. B) It decreases. C) It stays the same. D) None of the above. Show Answer Correct Answer: A) It increases. 7. The small openings through which insects respire are- A) Stomata. B) Lenticels. C) Nostrils. D) Spiracles. Show Answer Correct Answer: D) Spiracles. 8. Which type of cell uses cellular respiration? A) Plant cells. B) Animal cells. C) Both Animals and Plants. D) None of the above. Show Answer Correct Answer: C) Both Animals and Plants. 9. ATP molecules during anaerobic respiration A) 20 ATP. B) 2 ATP. C) 38 ATP. D) 382 ATP. Show Answer Correct Answer: B) 2 ATP. 10. What is the compound formed by mixing haemoglobin and oxygen? A) Oxyhaemoglobin. B) Glucose. C) Carbon dioxide. D) Energy. Show Answer Correct Answer: A) Oxyhaemoglobin. 11. Where are rings of cartilage found A) Throat. B) Nostrils. C) Lungs. D) None of the Above. Show Answer Correct Answer: A) Throat. 12. Yeast are used in A) Wine and beer industry. B) Bakery. C) In both. D) None of these. Show Answer Correct Answer: A) Wine and beer industry. 13. What is one of the three products of cellular respiration? A) Nitrogen. B) Oxygen. C) Glucose. D) ATP. Show Answer Correct Answer: D) ATP. 14. The diagram shows a woodlands food chain. What is the role of the tree in the food chain?Sun $\rightarrow$ Tree $\rightarrow$ Squirrel $\rightarrow$ Hawk A) Make energy available directly to the Hawk. B) To use Sun's energy to produce food. C) To break down waste left by squirrels. D) To provide a place for the hawk to build it's nest. Show Answer Correct Answer: B) To use Sun's energy to produce food. 15. In photosynthesis, how is chemical energy stored? A) ATP. B) Glucose. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: B) Glucose. 16. Muscles can also respire anaerobically. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. The percentage of carbon dioxide in exhaled air? A) 0.5%. B) 12.3%. C) 30.4%. D) None of these. Show Answer Correct Answer: D) None of these. 18. Due to accumulation of which Acid/s there is muscle cramps? A) Hydrochloric Acid. B) Ammonium Acid. C) Lactric acid. D) Lactic Acid. Show Answer Correct Answer: D) Lactic Acid. 19. If a single-celled organism that uses photosynthesis has its source of light removed, it will A) Divide repeatedly. B) Produce less energy. C) Grow in size. D) Generate more waste. Show Answer Correct Answer: B) Produce less energy. 20. During inhalation the passage of air into the body is as follows A) Nostrils-nasal cavity-larynx-pharynx-windpipe-lungs. B) Nostrils-nasal cavity-pharynx-larynx-windpipe-lungs. C) Nasal cavity-pharynx-larynx-nasal cavity-lungs. D) Nose-nasal cavity-pharynx-larynx-windpipe-lungs. Show Answer Correct Answer: B) Nostrils-nasal cavity-pharynx-larynx-windpipe-lungs. 21. The soil is formed by the breaking down of rocks by the action of wind, water and climate. This process is called A) Evaporation. B) Precipitation. C) Weathering. D) Condensation. Show Answer Correct Answer: C) Weathering. 22. The products of photosynthesis combine with the reactants in cellular respiration to remove (ATP) chemical energy from cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 23. Breathing rate in human beings in normal condition is(a) 12-15 times in a minute(b) 15-18 times in a minute(c) 18-22 times in a minute A) A. B) B. C) C. D) None of the above. Show Answer Correct Answer: B) B. 24. Many insects like Cockroaches have small openings called ..... A) Lungs. B) Spiracles. C) Nose. D) Mouth. Show Answer Correct Answer: B) Spiracles. 25. During inspiration air passes into lungs due tp A) Increased volume of thoracic cavity. B) Fall in pressure inside the lungs. C) Increased volume of thoracic cavity & Fall in pressure inside the lungs. D) Muscular expanstion of lungs. Show Answer Correct Answer: C) Increased volume of thoracic cavity & Fall in pressure inside the lungs. ← PreviousNext →Related QuizzesClass 7 Science Chapter 6 Respiration In Organisms Quiz 1Class 7 Science Chapter 6 Respiration In Organisms Quiz 2Class 7 Science Chapter 6 Respiration In Organisms Quiz 3Class 7 Science Chapter 6 Respiration In Organisms Quiz 4Class 7 Science Chapter 6 Respiration In Organisms Quiz 5Class 7 Science Chapter 6 Respiration In Organisms Quiz 6Class 7 Science Chapter 6 Respiration In Organisms Quiz 7Class 7 Science Chapter 6 Respiration In Organisms Quiz 8Class 7 Science Chapter 6 Respiration In Organisms Quiz 9Class 7 Science Chapter 6 Respiration In Organisms Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books