This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Organisms that obtain their organic material from other organisms A) Consumers. B) Autotrophs. C) Producers. D) None of the above. Show Answer Correct Answer: A) Consumers. 2. Breathing involves the movement of the ..... and the ..... A) Diaphragm, nostrils. B) Diaphragm, lungs. C) Diaphragm, rib-cage. D) None of the above. Show Answer Correct Answer: C) Diaphragm, rib-cage. 3. What do yeast yield while respiring? A) Carbon dioxide and water. B) Lactic acid. C) Oxygen. D) Alcohol. Show Answer Correct Answer: D) Alcohol. 4. Which is one of the processes/factors that produces ethanol in yeast during anaerobic respiration? A) LACTIC ACID. B) FERMENTATION. C) The CITRIC ACID CYCLE. D) CARBON DIOXIDE. Show Answer Correct Answer: B) FERMENTATION. 5. Which of the following has spesific transport system? A) Mucor. B) Fish. C) Amoeba. D) Yeast. Show Answer Correct Answer: B) Fish. 6. The tiny holes on the back of a plant's leaves that allow Oxygen and Carbon Dioxide to flow through are called what? A) Pigment. B) Stomata. C) Chloroplast. D) Mitochondria. Show Answer Correct Answer: B) Stomata. 7. The ..... carries air to the right and left bronchus. A) Esophagus. B) Alveoli. C) Bronchioles. D) Trachea. Show Answer Correct Answer: D) Trachea. 8. Roots respire through ..... A) Spiracles. B) Lenticles. C) Stomata. D) Air spaces. Show Answer Correct Answer: D) Air spaces. 9. Why do complex organisms need transport systems? A) Diffusion does not occur in simple organisms. B) Diffusion does not occur in complex organisms. C) Simple organisms have a larger surface area to volume ratio. D) Complex organisms have a smaller surface area to volume ratio. Show Answer Correct Answer: B) Diffusion does not occur in complex organisms. 10. An organism that obtains energy by eating other organisms. A) Consumer. B) Producer. C) Dekposer. D) Detriov. Show Answer Correct Answer: A) Consumer. 11. Which of the following means water leaving a plant's leaves as a gas? A) Evaporation. B) Condensation. C) Precipitation. D) Transpiration. Show Answer Correct Answer: D) Transpiration. 12. Organisms ..... consist of one cell, while organisms ..... consist of many cells ..... organisms are made up of one cell, while ..... organisms are made up of a lot of cells A) Multisel, uniselmulticellular, unicellular. B) Unisel, monoselunicellular, monocellular. C) Unisel, multiselunicellular, multicellular. D) Monosel, multiselmonocellular, multicellular. Show Answer Correct Answer: C) Unisel, multiselunicellular, multicellular. 13. Which of the following is necessary to perform various bio-logical activities in all living organisms? A) Respiration. B) Circulation. C) Food. D) Energy. Show Answer Correct Answer: D) Energy. 14. Breathing is a process that(i) provides O2 to the body.(ii) breaks down food to release energy.(iii) helps the body to get rid of CO2(iv) produces water in the cells.Which of the following gives the correct combination of functions of breathing? A) (i) and (ii). B) (ii) and (iii). C) (i) and (iii). D) (ii) and (iv). Show Answer Correct Answer: C) (i) and (iii). 15. Simple organisms such as unicellular organisms ..... A) Do not have a specialised transport system. B) Need a special transport system. C) All the above. D) None of the above. Show Answer Correct Answer: A) Do not have a specialised transport system. 16. During exhalation our ribs move A) Inwards. B) Outwards. C) Move upwards. D) None of these. Show Answer Correct Answer: C) Move upwards. 17. The mounaineers carry oxygen with them because: A) At an altitudes of more than 5km there is no air. B) The temparature of air is higher than that on the ground. C) The pressure of air is higher than that on the ground. D) The amount of air available to a person is less than that available on the ground. Show Answer Correct Answer: D) The amount of air available to a person is less than that available on the ground. 18. What is the name of the organ which expand and contract while breathing? A) Heart. B) Lungs. C) Diaphragm. D) Both b and c. Show Answer Correct Answer: D) Both b and c. 19. Which of the following is a part of the respiratory system? A) Lungs. B) Stomach. C) Large intestines. D) Heart. Show Answer Correct Answer: A) Lungs. 20. True of False. Mitosis occurs in both prokaryotic and eukaryotic cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. Plants carry out photosynthesis only during the day and respiration only at night. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 22. ..... are needed for growth and development A) Energy. B) Nutrient. C) Ingestion. D) Digestion. Show Answer Correct Answer: B) Nutrient. 23. Plants exchange gases through ..... A) Stomata. B) Guard cells. C) Epidermal cells. D) None of the above. Show Answer Correct Answer: A) Stomata. 24. We start ..... whenever we fill drowsy or sleepy. A) Coughing. B) Yawning. C) Eating. D) All of the above. Show Answer Correct Answer: B) Yawning. 25. During aerobic respiration, glucose is broken down into ..... and energy using oxygen. A) Carbon dioxide and hydrogen. B) Oxygen and water. C) Carbon dioxide and water. D) Nitrogen and water. Show Answer Correct Answer: C) Carbon dioxide and water. ← 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