This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the primary difference between aerobic and anaerobic respiration? A) Aerobic respiration produces more energy than anaerobic respiration. B) Anaerobic respiration occurs only in plants. C) Both types of respiration require the same amount of oxygen. D) The primary difference is that aerobic respiration requires oxygen, whereas anaerobic respiration does not. Show Answer Correct Answer: D) The primary difference is that aerobic respiration requires oxygen, whereas anaerobic respiration does not. 2. Organisms which respire in presence of oxygen is called A) Microbe. B) Aerobic. C) Anaerobic. D) None of these. Show Answer Correct Answer: B) Aerobic. 3. A LIVING THING ..... A) CAN GROW. B) CAN'T GROW. C) All the above. D) None of the above. Show Answer Correct Answer: A) CAN GROW. 4. Muscle cells are produced in? A) Human beings. B) Animals. C) Yeast. D) Lactic acid. Show Answer Correct Answer: D) Lactic acid. 5. You (a human) breathe in oxygen, and breathe out carbon dioxide. This is an example of which characteristic of life? A) Nutrition. B) Sensitivity. C) Respiration. D) None of the above. Show Answer Correct Answer: C) Respiration. 6. The function of the nervous system is ..... A) Digestion. B) Sensation. C) Excretion. D) Respiration. Show Answer Correct Answer: B) Sensation. 7. The fishes have lungs for Respiration A) True. B) Maybe. C) False. D) None of the above. Show Answer Correct Answer: C) False. 8. What is the organ used in plants for respiration? A) Gills. B) Stomata. C) Lungs. D) None of the above. Show Answer Correct Answer: B) Stomata. 9. When we breathe in we ..... our ribs and ..... our diaphragm A) Lift, flatten. B) Lower, rise. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lift, flatten. 10. The right lung is A) Three lobed. B) Two lobed. C) Not lobed. D) None of the above. Show Answer Correct Answer: A) Three lobed. 11. The process of converting sunlight energy into chemical energy stored in a molecule is called A) Cellular respiration. B) Photosynthesis. C) Mitochondria. D) Carbon dioxide. Show Answer Correct Answer: B) Photosynthesis. 12. The lichen is a relationship between ..... A) Alga and bacteria. B) Alga and fungi. C) Fungi and bacteria. D) Bacteria and yeast. Show Answer Correct Answer: B) Alga and fungi. 13. How does deforestation affect the oxygen cycle? A) Increases oxygen production. B) Has no impact on oxygen production. C) Causes oxygen to be released into the atmosphere. D) Reduces oxygen production. Show Answer Correct Answer: D) Reduces oxygen production. 14. Living things move A) In search of food. B) In search of shelter. C) To protect themselves from enemies. D) All of the above. Show Answer Correct Answer: D) All of the above. 15. The major excretory product in humans is A) Urine. B) Urea. C) Both Urine and Urea. D) None of these. Show Answer Correct Answer: B) Urea. 16. What are the products obtained by anaerobic respiration in yeast? A) Lactic acid + Energy. B) Carbon dioxide + Water + Energy. C) Ethanol + Carbon dioxide + Energy. D) Pyruvate. Show Answer Correct Answer: C) Ethanol + Carbon dioxide + Energy. 17. A group of similar cells that perform the same function A) Organ. B) Organ system. C) Tissues. D) Organism. Show Answer Correct Answer: C) Tissues. 18. Humans can experience BOTH PHOTOSYNTHESIS AND RESPIRATION. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. ..... is the smallest structural and functional unit of an organism A) Haemoglobin. B) Blood. C) Cell. D) None of the above. Show Answer Correct Answer: C) Cell. 20. The trees in mountain region have ..... shaped leaves. A) Triangle. B) Needle. C) Round. D) Flat. Show Answer Correct Answer: B) Needle. 21. Two examples of substances needed by cells during respiration are ..... A) Carbon dioxide and glucose. B) Oxygen and glucose. C) Urea and amino acids. D) Carbon monoxide and nitrogen. Show Answer Correct Answer: B) Oxygen and glucose. 22. Why is it important for cells to undergo respiration? A) To store genetic information. B) To produce energy in the form of ATP for cellular activities. C) To regulate the cell's temperature. D) To provide structural support for the cell. Show Answer Correct Answer: B) To produce energy in the form of ATP for cellular activities. 23. Carrying out the process of breathing is the function of the ..... system. A) Digestive. B) Circulatory. C) Nervous. D) Respiratory. Show Answer Correct Answer: D) Respiratory. 24. Fish are ..... A) Vertebrates. B) Invertebrates. C) All the above. D) None of the above. Show Answer Correct Answer: A) Vertebrates. 25. What are the reactants in the equation for cellular respiration? A) Oxygen and lactic acid. B) Carbon dioxide and water. C) Glucose and oxygen. D) Water and glucose. Show Answer Correct Answer: C) Glucose and oxygen. ← PreviousNext →Related 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 8Class 7 Science Chapter 6 Respiration In Organisms Quiz 9Class 7 Science Chapter 6 Respiration In Organisms Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books