This quiz works best with JavaScript enabled. Home > Class 7 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In cockroaches air enters through- A) Skin. B) Spiracles. C) Gills. D) Trachea. Show Answer Correct Answer: B) Spiracles. 2. Which system shares the pharynx with the respiratory system? A) Circulatory. B) Digestive. C) Excretory. D) Skeletal. Show Answer Correct Answer: B) Digestive. 3. 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. 4. Identify the gas that is a reactant in photosynthesis: A) Nitrogen. B) Oxygen. C) Carbon Dioxide. D) Chlorophyll. Show Answer Correct Answer: C) Carbon Dioxide. 5. The organ through which fishes breathe is A) Nose. B) Gills. C) Skin. D) Spiracles. Show Answer Correct Answer: B) Gills. 6. Name the type of respiration which causes muscle cramps A) Anaerobic respiration. B) Aerobic respiration. C) Internal. D) External. Show Answer Correct Answer: A) Anaerobic respiration. 7. 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. 8. What are the respiratory organs in mammals? A) Gills. B) Trachea. C) Skin. D) Lungs. Show Answer Correct Answer: D) Lungs. 9. Gaseous exchange takes place by plants by A) Osmosis. B) Diffusion. C) Tanspiration. D) None of the above. Show Answer Correct Answer: B) Diffusion. 10. How many ATP are produced from NADH2 during aerobic respiration A) 30. B) 8. C) 34. D) 2. Show Answer Correct Answer: B) 8. 11. ..... 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. 12. The air that we breathe in passes to the tiny sacs called A) Bronchi. B) Alveoli. C) Bronchioles. D) Pharynx. Show Answer Correct Answer: B) Alveoli. 13. Breathing rate incase of adult human being is- A) 20-24. B) 13-18. C) 68-72. D) 72. Show Answer Correct Answer: B) 13-18. 14. Lactic acid fermentation occurs in your muscles after a workout because your cells are struggling to get ..... A) Glucose. B) Sunlight. C) Oxygen. D) Water. Show Answer Correct Answer: C) Oxygen. 15. What is the purpose of cellular respiration? A) To get rid of carbon dioxide. B) To take in oxygen. C) To take in sugar. D) To break down food to create energy. Show Answer Correct Answer: D) To break down food to create energy. 16. ..... are the organs of respiration in human. A) Gills. B) Chest. C) Nose. D) Lungs. Show Answer Correct Answer: D) Lungs. 17. Choose all the autotrophs below A) Crocodile. B) Camel. C) Python. D) Bison. E) Grass. Show Answer Correct Answer: E) Grass. 18. Minimum loss of energy takes place while we are A) Walking. B) Swimming. C) Running. D) Sleeping. Show Answer Correct Answer: D) Sleeping. 19. What does the first law of thermodynamics state? A) Entropy increases. B) Energy is conserved. C) Metabolism decreases. D) Chemicals are produced. Show Answer Correct Answer: B) Energy is conserved. 20. What is the energy molecule? A) DNA. B) ATP. C) RNA. D) AAA. Show Answer Correct Answer: B) ATP. 21. ....and ..... , which required for proper functioning of the body of an organism A) Water and air. B) Air and food. C) Water and minerals. D) All of these. Show Answer Correct Answer: C) Water and minerals. 22. Respiration is a chemical reaction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. ..... is the main passageway into and out of the respiratory system. A) Mouth. B) Nose. C) Ear. D) Skin pores. Show Answer Correct Answer: B) Nose. 24. What are the products of anaerobic respiration in a muscle cell? A) Energy and Lactic Acid. B) Lactic Acid. C) Lactic Acid and Carbon Dioxide. D) Carbon Dioxide and Water. Show Answer Correct Answer: B) Lactic Acid. 25. Sometimes when you exercise, your cells do not have enough ..... to make ATP through cellular respiration. A) Oxygen. B) Glycolysis. C) Carbon dioxide. D) Chlorophyll. Show Answer Correct Answer: A) 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