This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Respiration In Organisms > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. We breathe fast during A) Reading. B) Sleeping. C) Heavy exercise. D) None of the above. Show Answer Correct Answer: C) Heavy exercise. 2. What is the original source of Energy in a food web? A) Decomposers (Bacteria and Fungi). B) Producers (Plants). C) Consumers (Animals). D) Sun. Show Answer Correct Answer: D) Sun. 3. Glucose is a form of ..... Energy. A) Radiant. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. 4. Choose the correct atomicity of Iron. A) Monoatmic. B) Polyatmic. C) Diatmic. D) Tetra Atomic. Show Answer Correct Answer: A) Monoatmic. 5. Which are the gases involved in breathing?(a) O2 and NO2(b) O2 and SO2(c) O2 and O3(d) O2 and CO2 A) B. B) C. C) A. D) D. Show Answer Correct Answer: D) D. 6. Aerobic Respiration takes place in the presence of ..... A) Carbon Monoxide. B) Oxygen. C) Glucose. D) Carbon dioxide. Show Answer Correct Answer: B) Oxygen. 7. Gills help's fishes to A) 4. to eat under water. B) 1. use oxygen dissolved in water. C) 2. they are also well supplied with blood vessels for exchanges of gases. D) 3. both 1 and 2 option. Show Answer Correct Answer: D) 3. both 1 and 2 option. 8. All organisms are made of small microscopic units which cannot be seen with the naked eyes, called A) Organs. B) Tissues. C) Cells. D) Animals. Show Answer Correct Answer: C) Cells. 9. 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. 10. 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. 11. Which compound is formed from oxygen and haemoglobin? A) Deoxyhaemoglobin. B) Carboxyhaemoglobin. C) Oxyhaemoglobin. D) Methaemoglobin. Show Answer Correct Answer: C) Oxyhaemoglobin. 12. 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. 13. 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. 14. 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. 15. The small openings through which insects respire are- A) Spiracles. B) Lenticels. C) Nostrils. D) Stomata. Show Answer Correct Answer: A) Spiracles. 16. 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. 17. ATP molecules during anaerobic respiration A) 2 ATP. B) 38 ATP. C) 382 ATP. D) 20 ATP. Show Answer Correct Answer: A) 2 ATP. 18. What is the compound formed by mixing haemoglobin and oxygen? A) Glucose. B) Oxyhaemoglobin. C) Carbon dioxide. D) Energy. Show Answer Correct Answer: B) Oxyhaemoglobin. 19. Where are rings of cartilage found A) Throat. B) Nostrils. C) Lungs. D) None of the Above. Show Answer Correct Answer: A) Throat. 20. What are the products of anaerobic respiration in a human cell? A) Energy and Lactic Acid. B) Lactic Acid. C) Lactic Acid and Carbon Dioxide. D) Carbon Dioxide and Water. Show Answer Correct Answer: B) Lactic Acid. 21. What is one of the three products of cellular respiration? A) Nitrogen. B) ATP. C) Glucose. D) Oxygen. Show Answer Correct Answer: B) ATP. 22. 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) To break down waste left by squirrels. B) To use Sun's energy to produce food. C) To provide a place for the hawk to build it's nest. D) Make energy available directly to the Hawk. Show Answer Correct Answer: B) To use Sun's energy to produce food. 23. In photosynthesis, how is chemical energy stored? A) Carbon Dioxide. B) Oxygen. C) ATP. D) Glucose. Show Answer Correct Answer: D) Glucose. 24. Muscles can also respire anaerobically. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. 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. 26. Due to accumulation of which Acid/s there is muscle cramps? A) Ammonium Acid. B) Lactic Acid. C) Lactric acid. D) Hydrochloric Acid. Show Answer Correct Answer: B) Lactic Acid. 27. If a single-celled organism that uses photosynthesis has its source of light removed, it will A) Grow in size. B) Divide repeatedly. C) Generate more waste. D) Produce less energy. Show Answer Correct Answer: D) Produce less energy. 28. During inhalation the passage of air into the body is as follows A) Nasal cavity-pharynx-larynx-nasal cavity-lungs. B) Nostrils-nasal cavity-pharynx-larynx-windpipe-lungs. C) Nostrils-nasal cavity-larynx-pharynx-windpipe-lungs. D) Nose-nasal cavity-pharynx-larynx-windpipe-lungs. Show Answer Correct Answer: B) Nostrils-nasal cavity-pharynx-larynx-windpipe-lungs. 29. 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. 30. 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. 31. Many insects like Cockroaches have small openings called ..... A) Spiracles. B) Lungs. C) Mouth. D) Nose. Show Answer Correct Answer: A) Spiracles. 32. Small openings on the side of the cockroaches body is called as A) Trachea. B) Spiracles. C) Glucose. D) None. Show Answer Correct Answer: B) Spiracles. 33. 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. 34. How many liters of water can a Camel can drink in 10minutes. A) 50 liters. B) 40 liters. C) 70 Liters. D) 30 liters. Show Answer Correct Answer: B) 40 liters. 35. Mold, fungi, and some types of bacteria are classified as decomposers. What is the role of a decomposer in a food web? A) Break down waste and dead organisms. B) Use sunlight and water to produce their own food. C) Release oxygen into the atmosphere for respiration. D) To provide the energy animals need for food. Show Answer Correct Answer: A) Break down waste and dead organisms. 36. A pipe in which the food goes through A) Trachea. B) Oesphouges. C) Wind pipe. D) None of the above. Show Answer Correct Answer: D) None of the above. 37. Eating a plant releases energy through the process of ..... A) Cellular respiration. B) Photosynthesis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cellular respiration. 38. In anaerobic respiration, ..... is not required. A) ATP. B) Glucose. C) Oxygen. D) None of these. Show Answer Correct Answer: C) Oxygen. 39. What best defines respiration: A) The process by which animals produce energy. B) The process by which organisms cool themselves down. C) The process by which plants produce energy. D) The process that only occurs in human lungs. E) The process by which organisms produce energy. Show Answer Correct Answer: E) The process by which organisms produce energy. 40. Which of the following processes creates the most ATP during aerobic cellular respiration? A) Glycolysis. B) Kreb's cycle. C) Electron transport chain. D) None of the above. Show Answer Correct Answer: C) Electron transport chain. 41. The process that involves The breakdown of food which takes place in the ..... is called aerobic respiration A) Presence of oxygen. B) Absence of oxygen. C) All the above. D) None of the above. Show Answer Correct Answer: A) Presence of oxygen. 42. Is the anabolic pathway in which light energy from the sun is converted chemical energy for use by the cell A) Cellular respiration. B) Thermodynamics. C) Photosynthesis. D) None of the above. Show Answer Correct Answer: C) Photosynthesis. 43. All living organisms breathe to get energy from food A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 44. Fish have organs called ..... that enable oxygen to diffuse into their bodies and carbon dioxide to diffuse out. A) Spiracles. B) Gills. C) Tracheal tubes. D) Lungs. Show Answer Correct Answer: B) Gills. 45. The organic molecule that is the cell's primary form of energy? A) Glucose. B) ATP. C) GMPTagsATP. D) ADP. Show Answer Correct Answer: B) ATP. 46. Plants gather ..... and water to make sugars in their leaves. A) Oxygen. B) Carbon dioxide. C) Sugar. D) Chloroplasts. Show Answer Correct Answer: B) Carbon dioxide. 47. The respiratory carrier in our body is A) Haemoglobin. B) Chlorophyll. C) Melanin. D) None of the above. Show Answer Correct Answer: A) Haemoglobin. 48. TRUE/FALSEHuman inhale through our nostrils. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 49. The glucose and oxygen used during respiration is delivered to each and every cell by the A) Digestive system. B) Respiratory system. C) Circulatory system. D) None of the above. Show Answer Correct Answer: C) Circulatory system. 50. It reproduces by laying eggs A) Human. B) Dog. C) Giraffe. D) Crocodile. Show Answer Correct Answer: D) Crocodile. 51. The intake of air rich in oxygen into body is called A) Breathing. B) Haemoglobin. C) Exhalation. D) Inhalation. Show Answer Correct Answer: D) Inhalation. 52. In earthworm, the exchange of gases occurs through- A) Lungs. B) Moist skin. C) Tracheae. D) Gills. Show Answer Correct Answer: B) Moist skin. 53. How yeast respire? A) Aerobic. B) Anaerobic. C) Both (a) and (b). D) None of these. Show Answer Correct Answer: B) Anaerobic. 54. Inhaling of O2 from air, blood carries to all parts & brings back CO2 is called as ..... A) Inspiration. B) Breathing. C) Respiration. D) Expiration. Show Answer Correct Answer: C) Respiration. 55. In the cells, oxygen is used to break down glucose into: A) Carbon dioxide, water and energy. B) Fats. C) Alcohol, carbon dioxide and energy. D) Lactic acid, water and energy. Show Answer Correct Answer: A) Carbon dioxide, water and energy. 56. During heavy exercise the breathing rate of a person slows down. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 57. What are single cell orgamisms A) Plant. B) Bacteria. C) Animal. D) Yeast. Show Answer Correct Answer: D) Yeast. 58. Animals depend upon energy from plants and is required for ..... and growth. A) Body repair. B) Photosynthesis. C) Energy. D) Growth. Show Answer Correct Answer: A) Body repair. 59. Which of the following is the respiratory organ of stems? A) Stomata. B) Lenticels. C) Root hair. D) Lung. Show Answer Correct Answer: B) Lenticels. 60. Tiny air sacs of lungs are called A) Heart. B) Alveoli. C) Diaphragm. D) None of these. Show Answer Correct Answer: B) Alveoli. ← PreviousNext →Related QuizzesScience QuizzesClass 7 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books