This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 39 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 39 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which term describes the relatively constant internal physical conditions of an organism? A) Permeability. B) Homeostasis. C) Specialization. D) Unicellularity. Show Answer Correct Answer: B) Homeostasis. 2. Which among the given animals breathe through their lungs as well as skin? A) Crocodile. B) Earthworm. C) Frog. D) Fish. Show Answer Correct Answer: C) Frog. 3. Both autotrophs & heterotrophs break down glucose to release ..... energy. A) CSI. B) ATP. C) HCl. D) H2O. Show Answer Correct Answer: B) ATP. 4. Which of the following is not a bacterial disease? A) Cholera. B) Botulism. C) Tetanus. D) Covid. Show Answer Correct Answer: D) Covid. 5. Cellular respiration is similar in both plants and animals in what way? A) Energy is required and oxygen is released. B) Nitrogen is required and energy is released. C) Oxygen is required and energy is released. D) Oxygen is required and carbon is released. Show Answer Correct Answer: C) Oxygen is required and energy is released. 6. Anaerobic means A) With oxygen. B) Without oxygen. C) To run for a long time. D) None of the above. Show Answer Correct Answer: B) Without oxygen. 7. The special features which enable living organisms to survive in their surrounding is known as ..... A) Habitat. B) Adaptation. C) Abiotic. D) Environment. Show Answer Correct Answer: B) Adaptation. 8. The movement of plant under the influence of light is called ..... A) Phototrophism. B) Geotropism. C) All the above. D) None of the above. Show Answer Correct Answer: A) Phototrophism. 9. During inspiration or inhalation, in lungs: A) Volume decreases, pressure increases. B) Volume increases, pressure decreases. C) Volume decreases, pressure decreases. D) Volume increases, pressure increases. Show Answer Correct Answer: B) Volume increases, pressure decreases. 10. At which trophic level is the MOST amount of energy available? A) Tertiary consumers. B) Secondary consumers. C) Primary consumers. D) Primary producers. Show Answer Correct Answer: D) Primary producers. 11. In unicellular animals such as A) Amoeba. B) Paramoecium. C) Both a) and b). D) Animals. Show Answer Correct Answer: C) Both a) and b). 12. Cockroaches breathe by using called A) Nose. B) Tracheae. C) Both (a) and (b). D) None of these. Show Answer Correct Answer: B) Tracheae. 13. While running which type of respiration is used? A) Aerobic. B) Anarobic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Anarobic. 14. 1Which organism is decribed in the information given below?i) Respire anerobically.ii) Used for bread makingiii) Reproduce by budding A) 1.Rhizopus. B) 2.Yeast. C) 3.Bread mould. D) 4.Potato. Show Answer Correct Answer: B) 2.Yeast. 15. The end products of anaerobic Respiration are A) Carbondioxide, water, energy. B) Carbondioxide, ethyl alcohol or lactic acid and energy. C) None. D) Carbondioxide, water and alcohol. Show Answer Correct Answer: B) Carbondioxide, ethyl alcohol or lactic acid and energy. 16. The leaves of the plants have tiny pores called A) None of these. B) Stomata. C) Chllorophyll. D) Photosynthesis. Show Answer Correct Answer: B) Stomata. 17. Fishes breathe with the help of gills which are richly supplied with blood vessels. The gills help the fish to- A) Take in oxygen from the air. B) Release the waste materials in water. C) Take in oxygen dissolved in water. D) Absorb nutrients from the water. Show Answer Correct Answer: C) Take in oxygen dissolved in water. 18. We breathe fast during A) Reading. B) Sleeping. C) Heavy exercise. D) None of the above. Show Answer Correct Answer: C) Heavy exercise. 19. What is the original source of Energy in a food web? A) Decomposers (Bacteria and Fungi). B) Producers (Plants). C) Consumers (Animals). D) Sun. Show Answer Correct Answer: D) Sun. 20. Glucose is a form of ..... Energy. A) Radiant. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. 21. Choose the correct atomicity of Iron. A) Tetra Atomic. B) Polyatmic. C) Monoatmic. D) Diatmic. Show Answer Correct Answer: C) Monoatmic. 22. Which are the gases involved in breathing?(a) O2 and NO2(b) O2 and SO2(c) O2 and O3(d) O2 and CO2 A) A. B) B. C) C. D) D. Show Answer Correct Answer: D) D. 23. Aerobic Respiration takes place in the presence of ..... A) Carbon dioxide. B) Carbon Monoxide. C) Oxygen. D) Glucose. Show Answer Correct Answer: C) Oxygen. 24. Gills help's fishes to A) 4. to eat under water. B) 1. use oxygen dissolved in water. C) 2. they are also well supplied with blood vessels for exchanges of gases. D) 3. both 1 and 2 option. Show Answer Correct Answer: D) 3. both 1 and 2 option. 25. All organisms are made of small microscopic units which cannot be seen with the naked eyes, called A) Animals. B) Cells. C) Tissues. D) Organs. Show Answer Correct Answer: B) 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