This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Respiration In Organisms > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Respiration relies on the muscles of inspiration and expiration. The thick, dome-shaped muscle that separates the abdomen from the thorax is called the: A) Sternocleomastoid. B) Levator ribs long. C) Diaphragm. D) Pectoralis major. Show Answer Correct Answer: C) Diaphragm. 2. 2:-Name another word which is also called aerobic respiration.? A) Cellular Respiration. B) Acellular Respiration. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cellular Respiration. 3. Energy in food is measured in ..... A) Temperature. B) Celsius. C) Grams per Calorie. D) Calories per gram. Show Answer Correct Answer: D) Calories per gram. 4. What is respiration? A) The process of taking in food. B) The process of releasing energy by oxidation of food. C) The process of breathing out carbon dioxide. D) The process of digesting food. Show Answer Correct Answer: B) The process of releasing energy by oxidation of food. 5. Increased physical activity ..... the rate of breathing A) INCREASES. B) DECREASES. C) NOT INCREASES. D) NONE. Show Answer Correct Answer: A) INCREASES. 6. What is the full form of WBC? A) White bloob cells. B) White blood cels. C) Where blood cells. D) White blood cells. Show Answer Correct Answer: D) White blood cells. 7. Your lung is part of the ..... system ..... A) Skeletal. B) Respiratory. C) Digestive. D) Circulatory. Show Answer Correct Answer: B) Respiratory. 8. Name the two body parts that work together to force air IN and OUT of the body: A) Lungs and trachea. B) Rib cage and diaphragm. C) Rib cage and nasal passage. D) Diaphragm and nasal passage. Show Answer Correct Answer: B) Rib cage and diaphragm. 9. The size of the chest cavity increase during exhalation A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. The output/products of cellular respiration are- A) Glucose, hemoglobin, and water. B) Glucose, energy and carbon dioxide. C) Unicorn farts. D) Carbon dioxide, energy and water. Show Answer Correct Answer: D) Carbon dioxide, energy and water. 11. Which of the following is formed in the human body when oxygen supply is not enough to meet the body's need for extra energy? A) Uric acid. B) Fatty acid. C) Carbonic acid. D) Lactic acid. Show Answer Correct Answer: D) Lactic acid. 12. From where do autotrophs obtain their energy? A) The sun. B) Other organisms. C) All the above. D) None of the above. Show Answer Correct Answer: A) The sun. 13. Fish and crabs have ..... as respiratory organs A) Skin. B) Lungs. C) Gills. D) None of the above. Show Answer Correct Answer: C) Gills. 14. Cellular respiration is a complex process that occurs in which organelle? A) Chloroplast. B) Ribosome. C) Mitochondrion. D) Nucleus. Show Answer Correct Answer: C) Mitochondrion. 15. The most likely organism to be used in bread making is: A) Yeast. B) Bacteria. C) Paramecium. D) Aspergilles. Show Answer Correct Answer: A) Yeast. 16. Which organ excretes carbon dioxide? A) Liver. B) Heart. C) Kidney. D) Lungs. Show Answer Correct Answer: D) Lungs. 17. Grasshopper breathes through A) Air holes. B) Stomata. C) Skin. D) Lungs. Show Answer Correct Answer: A) Air holes. 18. Which of the following is respiration in absence of oxygen. A) Aerobic respiration. B) Anaerobic respiration. C) None of above. D) Both of them. Show Answer Correct Answer: B) Anaerobic respiration. 19. Roots absorb air from A) Water. B) Sunlight. C) Soil. D) None of the above. Show Answer Correct Answer: C) Soil. 20. What is produced during the breakdown of glucose? A) Carbon dioxide. B) Oxygen. C) Lactic acid. D) All above. Show Answer Correct Answer: C) Lactic acid. 21. Windpipe is also called as A) Trachea. B) Bronchi. C) Larynx. D) Pharynx. Show Answer Correct Answer: A) Trachea. 22. The body of a living organism is made up of systems that work together in harmony. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. What are the openings called, which are present on the side of cockroaches body? A) Trachea. B) Spiracle. C) Root hair. D) None of the above. Show Answer Correct Answer: B) Spiracle. 24. What are the consequences of air pollution on the oxygen cycle? A) No impact on the oxygen cycle. B) Enhanced oxygen absorption by the atmosphere. C) Decreased oxygen production by plants and phytoplankton. D) Increased oxygen production by plants and phytoplankton. Show Answer Correct Answer: C) Decreased oxygen production by plants and phytoplankton. 25. The respiratory organs in cockroach are A) Lenticles. B) Spiracles. C) Lungs. D) Gills. Show Answer Correct Answer: B) Spiracles. 26. If a potted plant is over watered, the roots will: A) Grow. B) Dry. C) Die. D) None of these. Show Answer Correct Answer: C) Die. 27. Blood and heart ducts are found in the system ..... blood vessels and heart are in the ..... system A) RespirasiRespiration. B) Transport transportation. C) Nerveravous. D) None of the above. Show Answer Correct Answer: B) Transport transportation. 28. Which organism go through cellular respiration? A) Animals. B) Plants. C) Both animals and plants. D) None. Show Answer Correct Answer: C) Both animals and plants. 29. True or False. All forms of life use ATP Energy for cellular functions. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. ..... and carbon dioxide are the products of cellular respiration that are also the materials that will start photosynthesis. A) Oxygen. B) Water. C) Sugar. D) None of the above. Show Answer Correct Answer: B) Water. 31. The breakdown of glucose into carbon dioxide and water in the presence of oxygen is called: A) Transpiration. B) Anaerobic Respiration. C) Breathing. D) Aerobic Respiration. Show Answer Correct Answer: D) Aerobic Respiration. 32. During which process diaphragm moves downwards. A) Respiration. B) Exercise. C) Exhalation. D) Inhalation. Show Answer Correct Answer: D) Inhalation. 33. Organisms which respire in absence of air are called- A) Microbes. B) Anaerobes. C) Aerobes. D) None of these. Show Answer Correct Answer: B) Anaerobes. 34. Which of the following terms is also called anaerobic respiration? A) Transpiration. B) Imbibition. C) Fermentation. D) Transportation. Show Answer Correct Answer: C) Fermentation. 35. How does the structure of the leaf in plants facilitate gaseous exchange? A) Through small openings called stomata. B) By releasing oxygen into the air. C) Through the roots. D) By absorbing sunlight. Show Answer Correct Answer: A) Through small openings called stomata. 36. The blood brings ..... a ..... from the rest of the body for release into the alveoli, and the ..... b ..... present in alveoli is taken up by blood to be transported to all parts of the body. A) A-oxygen, b-carbon dioxide. B) A-carbon dioxide, b-oxygen. C) All the above. D) None of the above. Show Answer Correct Answer: B) A-carbon dioxide, b-oxygen. 37. Cellular Respiration's goal is to A) Make oxygen. B) Make glucose. C) Make ATP (energy). D) Make water. Show Answer Correct Answer: C) Make ATP (energy). 38. What happens in the process of respiration? A) Nothing happens. B) Glucose is broken down into energy. C) Gaseous exchange. D) Oxygen Becomes CO2. Show Answer Correct Answer: B) Glucose is broken down into energy. 39. Spiracles on the body of insect are connected to a network of thin air tubes called A) Lungs. B) Gills. C) Blow holes. D) Tracheae. Show Answer Correct Answer: D) Tracheae. 40. How do plants release oxygen during photosynthesis? A) Through the process of combustion. B) Through the process of dehydration. C) Through the process of photolysis. D) Through the process of fermentation. Show Answer Correct Answer: C) Through the process of photolysis. 41. The process of breaking down of food in the cell with release of energy is called A) Excretion. B) Digestion. C) Cellular respiration. D) Circulation. Show Answer Correct Answer: C) Cellular respiration. 42. Name one heterotroph organism A) Jar. B) Lion. C) Cat. D) Dog. Show Answer Correct Answer: D) Dog. 43. What is the main site of gaseous exchange in humans? A) Kidneys. B) Lungs. C) Stomach. D) Liver. Show Answer Correct Answer: B) Lungs. 44. One molecule produced by animals during cellular respiration is A) Carbon dioxide. B) Oxygen. C) Chlorophyll. D) Glucose. Show Answer Correct Answer: A) Carbon dioxide. 45. Which of the following structures is supported by cartilage? A) Aorta. B) Bronchus. C) Vena cava. D) Oesophagus. Show Answer Correct Answer: B) Bronchus. 46. Path followed by exhaled air is- A) Nostrils$\rightarrow$windpipe$\rightarrow$ lungs. B) Lungs$\rightarrow$ Nostrils$\rightarrow$ windpipe. C) Lungs $\rightarrow$ windpipe $\rightarrow$ nostrils. D) Nostril $\rightarrow$ lungs $\rightarrow$ windpipe. Show Answer Correct Answer: C) Lungs $\rightarrow$ windpipe $\rightarrow$ nostrils. 47. Lactose is converted into Lactic acid by ..... A) Lactobacillus. B) Penicillium. C) Acetobacter. D) Aspergillus. Show Answer Correct Answer: A) Lactobacillus. 48. What are the inputs (what goes in) of cellular respiration? A) Amino acids. B) Carbon dioxide and water. C) Glucose (sugar) and oxygen. D) Adenosine triphosphate. Show Answer Correct Answer: C) Glucose (sugar) and oxygen. 49. Which of the following is correct about photosynthesis? A) Occur during day and night. B) Use oxygen (Oxygen in). C) Produce water. D) Use carbon dioxide (Carbon dioxide in). Show Answer Correct Answer: D) Use carbon dioxide (Carbon dioxide in). 50. Which of these organisms have skin as respiratory organ? A) Cockroaches. B) Earthworms. C) Fishes. D) Rabbits. Show Answer Correct Answer: B) Earthworms. 51. Human cells need energy to survive. From which source does this energy originally come? A) Plants. B) Sunlight. C) Animals. D) Algae. Show Answer Correct Answer: B) Sunlight. 52. We smell food being cooked in the kitchen. This is an example which shows that A) Living things need food. B) Living things grow. C) Living things feel. D) Living things reproduce. Show Answer Correct Answer: C) Living things feel. 53. Which best describes the primary function of carbohydrates in an animal cell? A) To provide cellular energy. B) To provide structure to the cell membrane. C) To store cellular information. D) To store energy within the cell. Show Answer Correct Answer: A) To provide cellular energy. 54. During cellular respiration, energy is released from food. What else does the cell need for this process to take place. A) Carbon dioxide. B) Oxygen. C) Nitrogen. D) Sunlight. Show Answer Correct Answer: B) Oxygen. 55. Earthworms and frogs breathe through their skin because ofwhich the skin of both the organisms is A) Moist and rough. B) Dry and rough. C) Dry and slimy. D) Moist and slimy. Show Answer Correct Answer: D) Moist and slimy. 56. The number of times a person breaths in a minute is termed as? A) Inhalation. B) Breathing rate. C) Lungs. D) Diaphragm. Show Answer Correct Answer: B) Breathing rate. 57. Anaerobic respiration is also known as A) Photosynthesis. B) Aerobic. C) Fermentation. D) None of the above. Show Answer Correct Answer: C) Fermentation. 58. True or Fales:during cellular respiration cells use oxygen to break down the sugar to produce energy A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 59. Which molecule created by plants is broken down by the human body to provide energy for its life processes? A) Glucose. B) Oxygen. C) Water. D) Carbon dioxide. Show Answer Correct Answer: A) Glucose. 60. Which gas do organisms take in during respiration? A) Carbon Dioxide. B) Hydrogen. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: C) Oxygen. ← 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