This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Giving out of air rich in carbon dioxide is known as A) Exhalation. B) Breathing rate. C) Inhalation. D) Breathing. Show Answer Correct Answer: A) Exhalation. 2. The process which involved in the exchange of gases is called A) Respiration. B) Circulation. C) Digestion. D) Breathing. Show Answer Correct Answer: A) Respiration. 3. From the nasal cavity the air reaches our lungs through the A) Mouth. B) Chest cavity. C) Windpipe. D) None of the above. Show Answer Correct Answer: C) Windpipe. 4. Types of respiration A) 2. B) 4. C) 1. D) 5. Show Answer Correct Answer: A) 2. 5. Is the catabolic pathway in which organic molecules are broken down to release energy for use by a cell. A) Cellular respiration. B) Thermodynamics. C) Photosynthesis. D) None of the above. Show Answer Correct Answer: A) Cellular respiration. 6. Crystal is trying to increase the protein in her diet. Which foods will best satisfy this nutritional need? A) Peas, fish, milk, and beans. B) Apples, carrots, juice, and rice. C) Kiwi, lettuce, tea, and strawberries. D) Watermelon, spinach, coffee, and pasta. Show Answer Correct Answer: A) Peas, fish, milk, and beans. 7. Respiration is a biophysical process. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Prokaryotic organisms do not have ..... A) Cytoplasm. B) Nucleus. C) Nuclear membrane. D) Plasma membrane. Show Answer Correct Answer: C) Nuclear membrane. 9. Which of the following is not associated with respiration? A) Lungs. B) Alveoli. C) Liver. D) Trachea. Show Answer Correct Answer: C) Liver. 10. How do frog breathe in the water? A) Spiracle. B) Lungs. C) Moist skin. D) Gills. Show Answer Correct Answer: C) Moist skin. 11. Gas exhaled during respiration is called ..... A) Oxygen. B) Carbon dioxide. C) Waste. D) Sweat. Show Answer Correct Answer: A) Oxygen. 12. Tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged are ..... A) Bronchi. B) Alveoli. C) Larynx. D) Pharynx. Show Answer Correct Answer: B) Alveoli. 13. Organisms that obtain energy from other organisms ..... A) Autotroph. B) ATP. C) Photosynthesis. D) Heterotroph. Show Answer Correct Answer: D) Heterotroph. 14. What gas is released by plants during photosynthesis? A) Sulfur. B) Carbon dioxide. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: C) Oxygen. 15. Which is the most effective form of respiration? A) Aerobic respiration. B) Anaerobic respiration. C) Fermentation. D) Photosynthesis. Show Answer Correct Answer: A) Aerobic respiration. 16. During heavy exercise, we get cramps in the legs due to the accumulation A) Cabondioxide. B) Lactic acid. C) Alcohol. D) Water. Show Answer Correct Answer: B) Lactic acid. 17. Which organisms are capable of photosynthesis? A) Plants and Fungi. B) Animals. C) Humans. D) Plants. Show Answer Correct Answer: D) Plants. 18. 1:-Which Organism are responsible for taking the carbon dioxide? A) Human. B) Trees. C) Fish. D) None of the above. Show Answer Correct Answer: B) Trees. 19. 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) Pectoralis major. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. 20. 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. 21. Energy in food is measured in ..... A) Calories per gram. B) Grams per Calorie. C) Celsius. D) Temperature. Show Answer Correct Answer: A) Calories per gram. 22. The to and fro motion of a simple pendulum is an example of periodic or an ..... motion. A) Rectilinear Motion. B) Oscillatory Motion. C) Circular Motion. D) None of these. Show Answer Correct Answer: B) Oscillatory Motion. 23. 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. 24. Increased physical activity ..... the rate of breathing A) INCREASES. B) DECREASES. C) NOT INCREASES. D) NONE. Show Answer Correct Answer: A) INCREASES. 25. What is the full form of WBC? A) Where blood cells. B) White blood cels. C) White bloob cells. D) White blood cells. Show Answer Correct Answer: D) White blood cells. ← 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