This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Respiration In Organisms > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of energy is transferred in food chains? A) Mechanical. B) Chemical. C) Potential. D) Kinetic. Show Answer Correct Answer: B) Chemical. 2. Increased physical activity A) Iv. decreases the rate of breathing, increases the need for oxygen. B) I. increases the rate of breathing, decreases the need for oxygen. C) Ii. decreases the rate of breathingdecreases the need for oxygen. D) Iii. increases the rate of breathing, increases the need for oxygen. Show Answer Correct Answer: D) Iii. increases the rate of breathing, increases the need for oxygen. 3. Our respiratory system helps us get our air rich in ..... A) Carbon dioxide. B) Oxygen. C) Both. D) None. Show Answer Correct Answer: A) Carbon dioxide. 4. The role of the stomata in leaves is to: A) Allow gases to enter and exit the leaf. B) Conserve water by closing during times when too much water can transpire. C) Open when it rains so water can be taken in. D) A and B only. E) A and C only. Show Answer Correct Answer: D) A and B only. 5. Glycolysis process occurs in which part of the cell? A) Cytoplasm. B) Chloroplast. C) Nucleus. D) Mitochondria. Show Answer Correct Answer: A) Cytoplasm. 6. Skeletal structures surrounding chest cavity A) Lungs. B) Ribs. C) Heart. D) Tracheae. Show Answer Correct Answer: B) Ribs. 7. Process that converts light energy to chemical energy ..... A) Hypothesis. B) Autotroph. C) Heterotroph. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 8. Tiny pores on the surface of leaf called? A) Roots. B) Stomata. C) Xylem. D) Stem. Show Answer Correct Answer: B) Stomata. 9. What happens to matter and energy as they go through the process of photosynthesis? A) Both are lost. B) Both are conserved. C) Matter is lost, energy is conserved. D) Energy is lost, matter is conserved. Show Answer Correct Answer: B) Both are conserved. 10. Photosynthesis is used to: A) Store energy from sunlight. B) Store energy from carbon dioxide. C) Store energy from water. D) Store energy from food. Show Answer Correct Answer: A) Store energy from sunlight. 11. One molecule given off by plants during photosynthesis is A) Carbon dioxide. B) Oxygen. C) Water. D) Mitochondria. Show Answer Correct Answer: B) Oxygen. 12. What are the smaller units by which all matter is composed of? A) Molecules. B) Atoms. C) All the above. D) None of the above. Show Answer Correct Answer: B) Atoms. 13. What are muscle cramp?? A) Pain in hand. B) Pain in leg. C) Pain in muscle. D) Pain in head. Show Answer Correct Answer: C) Pain in muscle. 14. What is the energy organelle? A) Nucleus. B) Mitochondria. C) Ribosomes. D) None of the above. Show Answer Correct Answer: B) Mitochondria. 15. The process that involves The breakdown of food which take place in the ..... alled anaerobic respiration. A) Presence of oxygen. B) Absence of oxygen. C) All the above. D) None of the above. Show Answer Correct Answer: B) Absence of oxygen. 16. When we inhale air, it passes through our nostrils into the ..... cavity A) NASAL. B) BASAL. C) All the above. D) None of the above. Show Answer Correct Answer: A) NASAL. 17. One of the materials needed for photosynthesis is A) Mitochondria. B) Glucose. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 18. In which of the following activity, breathing rate would be fastest? A) Studying. B) Talking. C) Running. D) Standing. Show Answer Correct Answer: C) Running. 19. The ..... is the dome shaped muscle below the lungs A) Trachea. B) Rib. C) Alveoli. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. 20. The end product of Anaerobic respiration A) CO2 and H2O + 38 ATP. B) CO2 and ethanol + 2ATP. C) CO2 and Glucose. D) CO2 + H20 + 2 ATP. Show Answer Correct Answer: B) CO2 and ethanol + 2ATP. 21. When air is blown from mouth into test tube containing lime water, the lime water turns milky due to presence of? A) Nitrogen. B) Carbon dioxide. C) Water vapour. D) Oxygen. Show Answer Correct Answer: B) Carbon dioxide. 22. Which of the following refers to the role an organism plays in its environment? A) Community. B) Niche. C) Ecology. D) Population. Show Answer Correct Answer: B) Niche. 23. How do plants perform respiration differently from animals? A) Animals can perform photosynthesis like plants do. B) Plants only perform photosynthesis and do not respire. C) Plants and animals both rely solely on photosynthesis for energy. D) Plants perform respiration using cellular respiration and also engage in photosynthesis, while animals rely solely on respiration. Show Answer Correct Answer: D) Plants perform respiration using cellular respiration and also engage in photosynthesis, while animals rely solely on respiration. 24. What is the sugar that carbs are broken down to? A) Glucose. B) Maltose. C) Sucrose. D) Lactose. Show Answer Correct Answer: A) Glucose. 25. The openings through which we inhale? A) Gills. B) Nostrils. C) Tracheae. D) Spiracles. Show Answer Correct Answer: B) Nostrils. 26. According to the five kingdom classification, the kingdoms are( in proper order): A) Protista, Monera, plants, mushrooms, animals. B) MONERA, plants, protest, mushrooms, animals. C) MONERA, PROTISTA, Fungi, plants, animals. D) MONERA, fungi, protein, plants, animals. Show Answer Correct Answer: C) MONERA, PROTISTA, Fungi, plants, animals. 27. Ramesh did a heavy exercise continuously for 3 hours, and then after sometime, he experienced muscle cramps. What could be the reason for experiencing cramps in muscles? A) Temporary deficiency of carbon dioxide in muscle cells. B) Permanent deficiency of carbons oxide in muscle cells. C) Temporary deficiency of oxygen in muscle cells. D) Permanent deficiency of oxygen in muscle cells. Show Answer Correct Answer: C) Temporary deficiency of oxygen in muscle cells. 28. Giving out of air rich in carbon dioxide A) Inhalation. B) Exhalation. C) All the above. D) None of the above. Show Answer Correct Answer: B) Exhalation. 29. About breathing rate? A) None of theseb. B) The number of times a person breathes in a minute is termed as its breathing rate. C) The number of times a person breathes in an hour is termed as its breathing rate. D) All of the above. Show Answer Correct Answer: B) The number of times a person breathes in a minute is termed as its breathing rate. 30. Which system carried the gases around your body? A) Circulatory system. B) Skeletal System. C) Digestive System. D) None of the above. Show Answer Correct Answer: A) Circulatory system. 31. When an organism breaks down food, the atoms get rearranged into different molecules. When the atoms get rearranged, what is released? A) Water. B) Energy. C) Glucose. D) Oxygen. Show Answer Correct Answer: B) Energy. 32. During which process is the energy released? A) Photosynthesis. B) Respiration. C) Circulation. D) None of the above. Show Answer Correct Answer: B) Respiration. 33. Scientists are studying photosynthesis in a desert ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the desert carry out photosynthesis? A) Plants. B) Plants and decomposers. C) All organisms in the desert. D) Animals and decomposers. Show Answer Correct Answer: A) Plants. 34. Yeasts are single-celled organisms. They respire anaerobically and during this process yield alcohol. They are, therefore, used to make ..... AND ..... A) BEER. B) RED WINE. C) BOTH OF THESE. D) None of the above. Show Answer Correct Answer: C) BOTH OF THESE. 35. Which statement accurately describes an interaction between plants and animals? A) Plants provide humans with atmospheric nitrogen. B) Animals release O2, required for plant survival. C) Animals release CO2, required for photosynthesis. D) Plants provide humans with CO2 for respiration. Show Answer Correct Answer: C) Animals release CO2, required for photosynthesis. 36. 4Respiration is a ..... process while breathing is a ..... process A) Chemical, physical. B) Chemical, chemical. C) Physical, chemical. D) Physical, physical. Show Answer Correct Answer: A) Chemical, physical. 37. What is the function of alveoli in the lungs? A) To produce mucus for lubrication in the lungs. B) To filter out dust and particles from the air. C) To store oxygen for later use. D) The function of alveoli in the lungs is to enable gas exchange between the air and the bloodstream. Show Answer Correct Answer: D) The function of alveoli in the lungs is to enable gas exchange between the air and the bloodstream. 38. During inhalation, our lungs expand and then come back to the original state as the air moves out during ..... A) INHALATION. B) EXHALATION. C) All the above. D) None of the above. Show Answer Correct Answer: B) EXHALATION. 39. Define anaerobic respiration. A) Anaerobic respiration occurs only in plants during photosynthesis. B) Anaerobic respiration is the process of producing energy without oxygen. C) Anaerobic respiration is the process of breathing without air. D) Anaerobic respiration requires oxygen to produce energy. Show Answer Correct Answer: B) Anaerobic respiration is the process of producing energy without oxygen. 40. Average breathing rate in a new born baby A) 12 times. B) 18 times. C) 60 times. D) 25 times. Show Answer Correct Answer: C) 60 times. 41. Which item listed is NOT produced in the process of cellular respiration? A) Water. B) Energy in the form of ATP. C) Glucose. D) Carbon dioxide. Show Answer Correct Answer: C) Glucose. 42. Differentiate between aerobic and anaerobic respiration. A) Aerobic respiration produces more energy than anaerobic respiration. B) Aerobic respiration requires carbon dioxide, while anaerobic respiration requires oxygen. C) Aerobic respiration occurs in the absence of glucose, while anaerobic respiration occurs in the presence of glucose. D) Aerobic respiration requires oxygen, while anaerobic respiration does not require oxygen. Show Answer Correct Answer: D) Aerobic respiration requires oxygen, while anaerobic respiration does not require oxygen. 43. A series of chemical reactions that convert light energy, water, and CO2 into glucose and oxygen. A) ATP. B) Chlorophyll. C) Photosynthesis. D) Chloroplast. Show Answer Correct Answer: C) Photosynthesis. 44. How would you describe the texture of "sandy" soil? A) Slimy. B) Sticky. C) Gritty. D) Smooth. Show Answer Correct Answer: C) Gritty. 45. Which of the following is an amphibian? A) Crocodile. B) Man. C) Bird. D) Fish. Show Answer Correct Answer: A) Crocodile. 46. Trachea divides into two ..... , that divides into bronchioles before entering alveoli A) Larynx. B) Oesophagus. C) Bronchi. D) None of the above. Show Answer Correct Answer: C) Bronchi. 47. These structures are connected to the birds lungs to help supply them with necessary oxygen. A) Quills. B) Alveoli. C) Air sacs. D) None of the above. Show Answer Correct Answer: C) Air sacs. 48. Organisms that obtain energy from other organisms are: A) Autotrophs. B) Heterotrophs. C) All the above. D) None of the above. Show Answer Correct Answer: B) Heterotrophs. 49. In cockroaches air enters through- A) Gills. B) Skin. C) Trachea. D) Spiracles. Show Answer Correct Answer: D) Spiracles. 50. Which system shares the pharynx with the respiratory system? A) Digestive. B) Excretory. C) Skeletal. D) Circulatory. Show Answer Correct Answer: A) Digestive. 51. What are the products (what is made) of cellular respiration? A) Carbon dioxide, water, and ATP energy. B) Water, glucose, and ATP energy. C) Carbon dioxide, glucose, and ATP energy. D) Oxygen, glucose, and ATP energy. Show Answer Correct Answer: A) Carbon dioxide, water, and ATP energy. 52. Identify the gas that is a reactant in photosynthesis: A) Chlorophyll. B) Carbon Dioxide. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: B) Carbon Dioxide. 53. The organ through which fishes breathe is A) Spiracles. B) Skin. C) Nose. D) Gills. Show Answer Correct Answer: D) Gills. 54. Name the type of respiration which causes muscle cramps A) Aerobic respiration. B) External. C) Internal. D) Anaerobic respiration. Show Answer Correct Answer: D) Anaerobic respiration. 55. What is respiration in living organisms? A) Respiration is the method by which organisms reproduce and grow. B) Respiration involves the absorption of water and minerals from the soil. C) Respiration is the process of photosynthesis in plants. D) Respiration in living organisms is the process of converting nutrients into energy through gas exchange. Show Answer Correct Answer: D) Respiration in living organisms is the process of converting nutrients into energy through gas exchange. 56. What are the respiratory organs in mammals? A) Lungs. B) Gills. C) Skin. D) Trachea. Show Answer Correct Answer: A) Lungs. 57. Gaseous exchange takes place by plants by A) Osmosis. B) Diffusion. C) Tanspiration. D) None of the above. Show Answer Correct Answer: B) Diffusion. 58. How many ATP are produced from NADH2 during aerobic respiration A) 34. B) 30. C) 2. D) 8. Show Answer Correct Answer: D) 8. 59. ..... is the process of taking in oxygen using it for release of energy by oxidation food and elimination of wastes lie carbon dioxide and water A) Cellular respiration. B) Respiration. C) Aerobic. D) None of these. E) All of these. Show Answer Correct Answer: B) Respiration. 60. The air that we breathe in passes to the tiny sacs called A) Bronchioles. B) Bronchi. C) Alveoli. D) Pharynx. Show Answer Correct Answer: C) 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books