This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Respiration In Organisms > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How do cells obtain the energy and materials necessary for the work they do? A) They release nitrogen. B) They take in nutrients. C) They move around in the body. D) They produce oxygen and carbon dioxide. Show Answer Correct Answer: B) They take in nutrients. 2. Which of the following is not an advantage of classification? A) Tracing the origin of organisms. B) Easy identification of different organisms. C) Studying the conditions required for life of the organism. D) Placing organisms into different groups. Show Answer Correct Answer: C) Studying the conditions required for life of the organism. 3. Name the breathing organ in frogs that they use on land. A) Gills. B) Lungs. C) Moist Skin. D) Both lungs and moist skin. Show Answer Correct Answer: B) Lungs. 4. What is the main waste product of respiration? A) Oxygen. B) Carbon dioxide. C) Glucose. D) Nitrogen. Show Answer Correct Answer: B) Carbon dioxide. 5. There is a lot of energy stored in a molecule of glucose or in a molecule of ATP, and ths energy is referred to as A) Kinetic energy. B) Chemical energy. C) Light energy. D) Omega-energy. Show Answer Correct Answer: B) Chemical energy. 6. When glucose is broken down in the absence of Oxygen, it is called A) I. aerobic respiration. B) Ii. anaerobic respiration. C) Iii. both (i) and (ii). D) None of the above. Show Answer Correct Answer: B) Ii. anaerobic respiration. 7. Organisms that use the process of Cellular Respiration in their cells do this to: A) Digest their food, making it smaller and smaller. B) Make their own food by forming chemical bonds. C) Break down food (glucose) and unlock/release energy. D) Breathe in and out or inhale and exhale. Show Answer Correct Answer: C) Break down food (glucose) and unlock/release energy. 8. Why do mountaineers carry oxygen tanks with them? A) There is no air above 5 kilometres. B) The pressure of air is higher than that of the ground. C) The temperature of air is higher than that of the ground. D) The supply of oxygen is less than that of the ground. Show Answer Correct Answer: D) The supply of oxygen is less than that of the ground. 9. Name one organism that primarily uses aerobic respiration. A) Dog. B) Human. C) Cat. D) Goldfish. Show Answer Correct Answer: B) Human. 10. The percentage of carbon dioxide in inhaled air? A) 16.4%. B) 0.04%. C) 4.4%. D) 21%. Show Answer Correct Answer: B) 0.04%. 11. ..... is an example of a filamentous green algae. A) Porphyra. B) Spirogyra. C) Chlamydomonas. D) Laminaria. Show Answer Correct Answer: B) Spirogyra. 12. Identify all products of cell respiration? A) Glucose and Oxygen. B) Carbon Dioxide and Water. C) Carbon Dioxide, water and ATP. D) Oxygen, water, and Glucose. Show Answer Correct Answer: C) Carbon Dioxide, water and ATP. 13. (Assertion)-Whenever a person needs extra energy, he/she breathes faster.(Reason)-it speeds up the breakdown of food and more energy is released. A) Both statements are correct and the reason is the correct explanation. B) Both statements are correct but the reason is not the correct explanation. C) Assertion is wrong and the reason is correct. D) Assertion is correct but the reason is wrong. Show Answer Correct Answer: A) Both statements are correct and the reason is the correct explanation. 14. ..... Carry oxygen-rich blood from the heart to all parts of the body. A) Veins. B) Arteries. C) Capillaries. D) None of the above. Show Answer Correct Answer: B) Arteries. 15. Cell Processes occur at all times. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Cellular respiration occurs in A) Golgi Aparatus. B) Thylakoid. C) Chloroplasts. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 17. In cactus, photosynthesis is carried out by the ..... A) Spines. B) Stem. C) Roots. D) Leaves. Show Answer Correct Answer: B) Stem. 18. A student exhales air through a straw into a test tube containing a liquid, which turns milky in appearance A) The liquid is liquid carbon dioxide. B) The liquid is lemon water. C) The liquid is a mix of water and lactic acid. D) The liquid is lime water. Show Answer Correct Answer: D) The liquid is lime water. 19. How do plants respire? A) Plants respire by converting sunlight into energy without any gas exchange. B) Plants do not respire; they only perform photosynthesis. C) Plants respire by absorbing carbon dioxide and releasing oxygen during photosynthesis. D) Plants respire by taking in oxygen and releasing carbon dioxide through cellular respiration. Show Answer Correct Answer: D) Plants respire by taking in oxygen and releasing carbon dioxide through cellular respiration. 20. Analyze the situation and answer the following:you want to make chole-bhature, while making the bhature you kept yeast for some hours how will the yeast respire? A) Anaerobic respiration. B) Aerobic respiration. C) Cellular respiration. D) None of these. Show Answer Correct Answer: A) Anaerobic respiration. 21. ..... Is an essential phenomenon for the survival of all the living organisms A) Cars. B) Breathing. C) Jewellry. D) Clothes. Show Answer Correct Answer: B) Breathing. 22. When we breathe air enters our body through a pair of openings called A) Nostrils. B) Larynx. C) Lungs. D) Pharynx. Show Answer Correct Answer: A) Nostrils. 23. Which is the most associated with the building and repair of cells, organelles, and tissues? A) Lipid. B) Sugar. C) Protein. D) Fiber. Show Answer Correct Answer: C) Protein. 24. Two examples of waste products that are eliminate from the cells during respiration are ..... A) Carbon dioxide and glucose. B) Carbon dioxide and water. C) Carbon dioxide and oxygen. D) Carbon dioxide and Carbon monoxide. Show Answer Correct Answer: B) Carbon dioxide and water. 25. Biotic means "living" A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 26. Plants breathe through tiny pores in the leaves called- A) Leaf blade. B) Pores. C) Stomata. D) Trachea. Show Answer Correct Answer: C) Stomata. 27. A large, muscular sheet called ..... forms the floor of the chest cavity A) Rib Cage. B) Alveoli. C) Bronchi. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. 28. What is the ability to do work? A) Cellular respiration. B) Energy. C) Growth. D) Photosynthesis. Show Answer Correct Answer: B) Energy. 29. What is cutaneous respiration? A) Breathing through gills. B) Breathing through lungs. C) Breathing through skin. D) Breathing through trachea. Show Answer Correct Answer: C) Breathing through skin. 30. Yeast is used in wine and beer industry because it respires A) Aerobically producing oxygen. B) Anaerobically producing alcohol. C) Aerobically producing alcohol. D) Anaerobically producing oxygen. Show Answer Correct Answer: B) Anaerobically producing alcohol. 31. At night, when there is no photosynthesis occurring ..... elimination is the major exchange activity on. A) Oxygen. B) Carbon Dioxide Gas. C) Glucose. D) None of the above. Show Answer Correct Answer: B) Carbon Dioxide Gas. 32. Plants carry out photosynthesis only during inhalation. A) True. B) False. C) All of above. D) None of above. Show Answer Correct Answer: B) False. 33. The respiratory system works with the ..... to help with Cellular Respiration A) Nervous system. B) Muscular System. C) Endocrine System. D) Circulatory System. Show Answer Correct Answer: D) Circulatory System. 34. Short form of carbon dioxide is ..... A) Elbow. B) CO2. C) CO. D) CD. Show Answer Correct Answer: B) CO2. 35. The following word equation shows a chemical process that take place in an organism Y. What is organism Y?Glucose$\rightarrow$ Ethyl alcohol + carbon dioxide A) Yeast. B) Hydra. C) Protozoan. D) Algae. Show Answer Correct Answer: A) Yeast. 36. Yeast breaks down glucose into ..... and carbon dioxide. A) Alchohol. B) Energy. C) Food. D) Oxygen. Show Answer Correct Answer: A) Alchohol. 37. Decomposers like mushrooms get energy by- A) Producing their own food. B) Eating grass, fruit, and seeds. C) Breaking down dead organisms. D) Absorbing carbon dioxide from the air. Show Answer Correct Answer: C) Breaking down dead organisms. 38. During heavy exercise, we get cramps in our legs due to accumulation of- A) Carbon dioxie. B) Formic acid. C) Oxygen. D) Lactic acid. Show Answer Correct Answer: D) Lactic acid. 39. When we inhale air, it passes through our- A) Mouth. B) Lungs. C) Nostrils. D) Diaphragm. Show Answer Correct Answer: C) Nostrils. 40. The glucose used during respiration is provided by our A) Digestive system. B) Respiratory system. C) Circulatory system. D) None of the above. Show Answer Correct Answer: A) Digestive system. 41. Autotrophs capture the sun's energy using ..... A) Chlorophyll. B) Glucose. C) Mitochondria. D) Cellular respiration. Show Answer Correct Answer: A) Chlorophyll. 42. One gram mole of glucose on complete oxidation to CO2 and H2O produces about A) 6, 860, 000 cal. B) 686, 000 cal. C) 6, 860 cal. D) 68, 600 cal. Show Answer Correct Answer: B) 686, 000 cal. 43. One molecule needed for cellular respiration is A) Cholorophyll. B) Glucose. C) Water. D) Carbon dioxide. Show Answer Correct Answer: B) Glucose. 44. What is broken down during aerobic respiration? A) Glucose. B) Sugar. C) Fats. D) Carbohydrates. Show Answer Correct Answer: A) Glucose. 45. The number of times a person breaths in a minute is termed as the A) Breathing Rate. B) Pulse Rate. C) Respiration. D) None of these. Show Answer Correct Answer: A) Breathing Rate. 46. Energy is used by organisms to: A) Repair their bodies. B) Grow larger. C) Move. D) All of the above. Show Answer Correct Answer: D) All of the above. 47. The farmers sometimes loosen the soil because ..... A) It helps the root to respire through the air present in the space between soil particles. B) It helps plants to survive in high temperature. C) All the above. D) None of the above. Show Answer Correct Answer: A) It helps the root to respire through the air present in the space between soil particles. 48. What are the products of cellular respiration? A) Oxygen and sugar. B) Oxygen and water. C) Carbon dioxide and sugar. D) Carbon dioxide and water. Show Answer Correct Answer: D) Carbon dioxide and water. 49. The chemical reactions of photosynthesis occur in chloroplasts, the organelles in plant cells that convert light energy into ..... A) CO2. B) Food. C) Bacteria. D) Waste. Show Answer Correct Answer: B) Food. 50. Thin muscular membrane that separates the chest cavity from the abdominal cavity A) Diaphragm. B) Stomata. C) Trachea. D) None of these. Show Answer Correct Answer: A) Diaphragm. 51. Breakdown of glucose occurs with the use of oxygen is called? A) Cellular respiration. B) Aerobic respiration. C) Anaerobic respiration. D) Breathing rate. Show Answer Correct Answer: B) Aerobic respiration. 52. Terrestrial organisms use the oxygen in the atmosphere for respiration. True or False? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 53. Badal appeared in class test but he confused to know the incorrect statement. Would you help him to know that? A) . Respiration is a kind of slow burning or slow combustion of food at ordinary temperature to produce energy. B) . The process of respiration is the similar process as of photosynthesis. C) . The process of breakdown of food in the cells of the body with the release of energy is called respiration. D) . None of the above. Show Answer Correct Answer: B) . The process of respiration is the similar process as of photosynthesis. 54. Which of these is not true about cellular respiration? A) It releases energy. B) It occurs only during the day. C) It utilizes oxygen and liberates carbon dioxide. D) It occurs in most plants and animals. Show Answer Correct Answer: B) It occurs only during the day. 55. What gas is released into the air during cellular respiration? A) Glucose. B) Oxygen. C) Water. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 56. Cockroaches breathe through A) Lungs. B) Skin. C) Other. D) Spiricals. Show Answer Correct Answer: D) Spiricals. 57. Breaking down of pyruvate using oxygen takes place in ..... A) Mitochondria. B) Cytoplasm. C) Muscles. D) None of the above. Show Answer Correct Answer: A) Mitochondria. 58. Does the root cells of plants need oxygen to generate energy? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 59. There is no respiration in frog. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 60. What is the role of haemoglobin in respiration? A) To release energy. B) To break down glucose. C) To transport oxygen in the blood. D) To absorb carbon dioxide. Show Answer Correct Answer: C) To transport oxygen in the blood. ← 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