This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. On an average, an adult human being at rest breathes in and out ..... times in a minute. A) 15-18. B) 20-25. C) 30-35. D) 40-45. Show Answer Correct Answer: A) 15-18. 2. The plants and animals that live on land are called ..... A) Terrestrial. B) Aquatic. C) Arboreal. D) None of the above. Show Answer Correct Answer: A) Terrestrial. 3. What gas do producers give off as a result of photosynthesis? A) Oxygen. B) Carbon dioxide. C) Hydrogen. D) Nitrogen. Show Answer Correct Answer: A) Oxygen. 4. Most chemical changes in living things cannot take place without ..... A) Water. B) Oxygen. C) Temperature. D) Air. Show Answer Correct Answer: A) Water. 5. A process by which glucose, a sugar, is broken into smaller molecules. A) Cellular Respiration. B) Cytoplasm. C) Mitochondria. D) Glycolysis. Show Answer Correct Answer: D) Glycolysis. 6. What is end product of glucose in the absence of oxygen in muscle cells A) Carbon dioxide. B) Oxygen. C) Lactic acid. D) Alcohol. Show Answer Correct Answer: C) Lactic acid. 7. Which of the following use spiracles for respiration? A) Mosquito & cockroach. B) Earthworm & cockroach. C) Fish & grasshopper. D) Only cockroach. Show Answer Correct Answer: A) Mosquito & cockroach. 8. The process that involves the breakdown of food which leads to release of energy in living organisms called as A) Reproduction. B) Respiration. C) Fermentation. D) Breathing rate. Show Answer Correct Answer: B) Respiration. 9. How do organisms get the energy they need? A) Plants get energy from fertilizers and animals get energy from drinking water. B) Plants get energy from glucose produced in the soil, and animals get energy directly from sunlight. C) Plants break down the glucose they produced in photosynthesis, and animals get energy from eating other organisms. D) Plants do not require energy because they do not move, and animals get energy by performing exercise. Show Answer Correct Answer: C) Plants break down the glucose they produced in photosynthesis, and animals get energy from eating other organisms. 10. Which of the following takes place during inhalation? A) Ribs move downwards and outwards. B) Ribs move upward and inward. C) Ribs move downward and inward. D) Ribs move upward and outward. Show Answer Correct Answer: D) Ribs move upward and outward. 11. Lime water turns milky due to the presence of which of the following gases? A) Carbon monoxide. B) Carbon dioxide. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: B) Carbon dioxide. 12. What are the effects of lack of oxygen on the human body? A) Increased energy and alertness. B) Improved lung function and capacity. C) Enhanced immune system response. D) Loss of consciousness and organ damage. Show Answer Correct Answer: D) Loss of consciousness and organ damage. 13. During heavy exercise, we get cramps in our body due to the accumulation of A) Carbon dioxide. B) Lactic acid. C) Alcohol. D) Water. Show Answer Correct Answer: B) Lactic acid. 14. Bronchi get smaller when they reach closer to the lungs tissues and are called Alveoli. Select true or false A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 15. Living things that gain energy by eating other organisms are called A) Megatrophs. B) Phototrophs. C) Autotrophs. D) Heterotrophs. Show Answer Correct Answer: D) Heterotrophs. 16. Insects A) Gills. B) Skin. C) Trachea. D) Air spaces. Show Answer Correct Answer: C) Trachea. 17. Main organ of human respiratory system is A) Lungs. B) Heart. C) Liver. D) Stomach. Show Answer Correct Answer: A) Lungs. 18. What is the energy that is produced in cell respiration? A) ADP. B) Sugar. C) ATP. D) None of the above. Show Answer Correct Answer: C) ATP. 19. The respiratory organs for the exchange of gases ..... in different organisms. A) SAME. B) DIFFERENT. C) All the above. D) None of the above. Show Answer Correct Answer: B) DIFFERENT. 20. Every organ in the body is consisted of some ..... A) Organs. B) Glands. C) Tissues. D) Systems. Show Answer Correct Answer: C) Tissues. 21. What type of cells transport oxygen in the blood? A) Red blood cells. B) White blood cells. C) Neurons. D) Cartilage cells. Show Answer Correct Answer: A) Red blood cells. 22. What type of respiration occurs in the absence of oxygen? A) Cellular respiration. B) External respiration. C) Aerobic respiration. D) Anaerobic respiration. Show Answer Correct Answer: D) Anaerobic respiration. 23. Our body needs ..... to perform its functions. A) Food. B) Water. C) Energy. D) Oxygen. Show Answer Correct Answer: C) Energy. 24. What is one of the reactants of cellular respiration? A) Energy. B) Glucose. C) Carbon dioxide. D) Water. Show Answer Correct Answer: B) Glucose. 25. Yeasts are used in A) Wine. B) Bears. C) A and b both. D) Bakery. Show Answer Correct Answer: C) A and b both. ← 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