This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Respiration In Organisms > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is the adaptation of skin of frogs for gaseous exchange? A) Moist and cold. B) Slippery and slimy. C) Thin and folded. D) Moist and rich in blood capillaries. Show Answer Correct Answer: D) Moist and rich in blood capillaries. 2. Exchange of gases in plants takes place through? A) Buds. B) Soil. C) Entire leaf. D) Stomata. Show Answer Correct Answer: D) Stomata. 3. Which of the following are the products of photosynthesis? A) CO$_{2 }$+ Sunlight. B) Glucose$_{ }$+ Sunlight. C) O$_{2}$ + Glucose. D) Glucose + CO$_{2 }$. Show Answer Correct Answer: C) O$_{2}$ + Glucose. 4. S. A large, muscular sheet called ..... forms diaphragm the floor of the chest cavity A) DIAPHRAGM. B) RIBS. C) All the above. D) None of the above. Show Answer Correct Answer: A) DIAPHRAGM. 5. In cockroaches, air enters the body through A) (iv) skin. B) (3) Spiracles. C) (i) lungs. D) (ii) gills. Show Answer Correct Answer: B) (3) Spiracles. 6. The system that digests and absorbs food is ..... A) Nervous system. B) Respiratory system. C) Digestive system. D) Urinary system. Show Answer Correct Answer: C) Digestive system. 7. This passageway is part of both the Respiratory system and the Digestive system. A) Pharynx. B) Nasal cavity. C) Larynx. D) Trachea. Show Answer Correct Answer: A) Pharynx. 8. The vessels are made of special cells, forming the A) Vacular tissue. B) Vasular tissue. C) Vesular tissue. D) Vascular tissue. Show Answer Correct Answer: D) Vascular tissue. 9. What happens to the carbon dioxide produced during respiration in organisms? A) It is released as a waste product. B) It is excreted through the skin. C) It is converted into oxygen. D) It is stored in the body. Show Answer Correct Answer: A) It is released as a waste product. 10. What is the scientific term for the structure that is commonly known as your voicebox? A) Roar. B) Bronchioles. C) Larynx. D) Alveoli. Show Answer Correct Answer: C) Larynx. 11. The ..... system distributes the digested food and oxygen gas all over the body cells. A) Nervous. B) Urinary. C) Respiratory. D) Circulatory. Show Answer Correct Answer: D) Circulatory. 12. What will happen when diaphragm relaxes and curves upwards? A) Air is forced out of the lungs. B) Rib cage goes up and outwards. C) The volume of the thoracic cavity increases. D) Air pressure inside the thoracic cavity decreases. Show Answer Correct Answer: A) Air is forced out of the lungs. 13. In cows and buffaloes, A) I. The respiratory system is similar to dogs and cats. B) Ii. The respiratory system is similar to humans. C) Iii. They have a unique respiratory system that absorbs oxygen from grass. D) Iv. Both (i) and (ii). Show Answer Correct Answer: D) Iv. Both (i) and (ii). 14. What is 'Breathing Rate'? A) Number of times a Person exhales per minute. B) Number of times a Person respire per minute. C) Number of times a Person inhales per minute. D) Number of times a Person breathes per minute. Show Answer Correct Answer: D) Number of times a Person breathes per minute. 15. Lenticels are found in which of the following parts of a plant? A) Roots. B) Stem. C) Skin of fruits. D) All of these. E) None of these. Show Answer Correct Answer: D) All of these. 16. What happen if the transport system fails to eliminate the waste products from the cells? A) Becomes nutrient to the cells. B) Combine with the cells. C) Digested in the stomach. D) Becomes poison to the cells. Show Answer Correct Answer: D) Becomes poison to the cells. 17. What is the basic structural unit of an organism A) Cell. B) Atoms and Molecules. C) Brick. D) None of these. Show Answer Correct Answer: A) Cell. 18. The fish have Lung for respiration A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. Breathing is a process that(i) provides O2 to the body.(ii) breaks down food to release energy.(iii) helps the body to get rid of CO2(iv) produces water in the cells.Which of the following gives the correct A) 1 and 3. B) 1 and 4. C) 1 and 2. D) No one. Show Answer Correct Answer: A) 1 and 3. 20. How is energy transformed from photosynthesis through cellular respiration? A) Energy originates from the Sun as a radiant during photosynthesis. It's then converted to chemical energy. In cellular respiration, the energy is converted from chemical energy in the glucose molecule to another form of chemical energy called ATP. B) Chemical energy converts to energy in photosynthesis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Energy originates from the Sun as a radiant during photosynthesis. It's then converted to chemical energy. In cellular respiration, the energy is converted from chemical energy in the glucose molecule to another form of chemical energy called ATP. 21. Breathing involves the upward movement of the diaphragm. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. ....to all the cells where it will be break down/oxidized for the release of energy A) Food. B) Water. C) Air. D) None of these. Show Answer Correct Answer: A) Food. 23. What ultimately occurs during respiration is A) Electron transport. B) Synthesis of ATP. C) Capture of solar energy. D) Break down of ATP. Show Answer Correct Answer: B) Synthesis of ATP. 24. Our muscle cells do anaerobic respiration only when there is temporary deficiency of oxygen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Fill in the blank in the given equation of aerobic respiration-Glucose + ..... $\rightarrow$ carbon dioxide + water + energy A) Nitrogen. B) Oxygen. C) Ethyl alcohol. D) Water. Show Answer Correct Answer: B) Oxygen. 26. In plants water is transported through A) Xylem. B) Situem. C) Xylen. D) Xylam. Show Answer Correct Answer: A) Xylem. 27. Tiny openings on the bark of the tree for exchange of gases are called A) Root hair. B) Blow hole. C) Lenticels. D) Stomata. Show Answer Correct Answer: C) Lenticels. 28. What is the role of the trachea in the respiratory system? A) To filter and humidify air. B) To exchange gases. C) To transport air to the lungs. D) To produce sound. Show Answer Correct Answer: C) To transport air to the lungs. 29. Describe the process of breathing in humans. A) Breathing in humans involves only the movement of the arms and legs. B) Humans breathe by absorbing oxygen through their skin. C) Breathing in humans is the process of inhaling air into the lungs and exhaling it out, facilitated by the diaphragm and intercostal muscles. D) Breathing is solely controlled by the brain without any muscle involvement. Show Answer Correct Answer: C) Breathing in humans is the process of inhaling air into the lungs and exhaling it out, facilitated by the diaphragm and intercostal muscles. 30. In animals like cow, buffalo, dog and cat the respiratory organs and the process of breathing are similar to those in ..... A) ALIENS. B) HUMAN BEINGS. C) All the above. D) None of the above. Show Answer Correct Answer: B) HUMAN BEINGS. 31. In respiration, pyruvic acid is A) Formed only when the cell is with mitochondria. B) Formed only when oxygen is available. C) Formed only when cell is performing aerobic respiration. D) Commonly formed as intermediate product of aerobic and anaerobic respiration. Show Answer Correct Answer: D) Commonly formed as intermediate product of aerobic and anaerobic respiration. 32. In Inhalation, ribs move A) Up and outwards and diaphragm moves down. B) Down and inwards while diaphragm moves up. C) All the above. D) None of the above. Show Answer Correct Answer: A) Up and outwards and diaphragm moves down. 33. Cellular respiration takes place in which eukaryotic organelle? A) Cytoplasm. B) Mitochondria. C) Ribosome. D) Chloroplast. Show Answer Correct Answer: B) Mitochondria. 34. Fermentation occurs in a cell's cytoplasm, not in the mitochondria. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 35. We get relief from cramps after A) Hot water bath. B) Massage. C) All of these. D) None of the above. Show Answer Correct Answer: C) All of these. 36. Cilia present in the upper part of respiratory tract, helps to remove germs and dust. Smoking ..... these hair. A) Maintains. B) Destroys. C) Produces. D) None of the above. Show Answer Correct Answer: B) Destroys. 37. Which of these juices is secreted by pancreas? A) Trypsin. B) Pepsin. C) Bile juice. D) Both I and II. Show Answer Correct Answer: D) Both I and II. 38. Adaptation is a short term change, acclimatization is a long term change with respect to the surroundings. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 39. Write the full form of ATP A) Adenosine diphosphate. B) Adenosine triphosphate. C) Adenosine phosphate. D) None of the above. Show Answer Correct Answer: B) Adenosine triphosphate. 40. Which organisms do photosynthesis? A) Animals. B) Plants. C) All the above. D) None of the above. Show Answer Correct Answer: B) Plants. 41. What are the 2 types of cells A) Plant cell and Animal cell. B) Unicellular and multicellular. C) Unicellular and animal cell. D) Plant cell and multicellular. Show Answer Correct Answer: A) Plant cell and Animal cell. 42. What is a frogs skin like? A) Moist. B) Hard. C) Slippery. D) Both Moist and Slippery. Show Answer Correct Answer: D) Both Moist and Slippery. 43. Pick the odd-one-out A) Crocodile. B) Fish. C) Dolphin. D) Whale. Show Answer Correct Answer: B) Fish. 44. From. The nasal cavity the air reaches our A) Lungs. B) Diaphragm. C) Nose. D) Oesophagus. Show Answer Correct Answer: A) Lungs. 45. In earthworm, the exchange of gases occurs through the moist ..... A) LEGS. B) HANDS. C) SKIN. D) NOSE. Show Answer Correct Answer: C) SKIN. 46. The energy that is found in food was once A) Energy from the sun. B) Energy from the animal. C) Energy from electricity. D) Energy from water. Show Answer Correct Answer: A) Energy from the sun. 47. What are the three components of soil? A) Insects, sand, topsoil. B) Clay, sand, humus. C) Topsoil, subsoil, bedrock. D) Earthworms, sand, silt. Show Answer Correct Answer: B) Clay, sand, humus. 48. The organ that beats very fast is the ..... A) Kidney. B) Heart. C) Liver. D) Lungs. Show Answer Correct Answer: B) Heart. 49. Habitat and adaptation belong to the same environment. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 50. What does oxyhaemoglobin release in the cells? A) Carbon dioxide. B) Hydrogen. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 51. When we inhale, we breathe in air into the lungs. What do we breathe out when we exhale? A) Only oxygen gas. B) Air that has more oxygen than inhaled air. C) Only hydrogen gas. D) Air that has more carbon dioxide than inhaled air. Show Answer Correct Answer: D) Air that has more carbon dioxide than inhaled air. 52. How do plants get the glucose they need for Cellular Respiration? A) By breathing. B) Be sleeping. C) By making it via photosynthesis. D) By consuming carbohydrates. Show Answer Correct Answer: C) By making it via photosynthesis. 53. An example of aerobes A) Cat. B) Dog. C) Human being. D) All the above. Show Answer Correct Answer: D) All the above. 54. The process of cellular respiration will: A) Release energy in water. B) Release energy in carbon dioxide. C) Release energy in food. D) Release energy in sunlight. Show Answer Correct Answer: C) Release energy in food. 55. Amoeba also respires, needs food, excretes and show movement A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 56. Which gas turns lime water milky A) Nitrogen dioxide. B) Carbon dioxide. C) Oxygen. D) None of the above. Show Answer Correct Answer: B) Carbon dioxide. 57. This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present. A) Light-independent reaction. B) Light-dependent reaction. C) Cellular respiration. D) Photosynthesis. Show Answer Correct Answer: C) Cellular respiration. 58. What are the two main products of photosynthesis? A) Adenosine triphosphate and carbon dioxide. B) Carbon dioxide and water. C) Glucose and carbon dioxide. D) Glucose and oxygen. Show Answer Correct Answer: D) Glucose and oxygen. 59. In respiration energy not converted in ATP is A) Liberated along with CO$_{2}$. B) Transferred to organic compounds. C) Converted into heat. D) Transferred to water. Show Answer Correct Answer: C) Converted into heat. 60. All living organisms respire to get energy from food. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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