This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 35 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 35 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the basic structural unit of an organism A) Cell. B) Atoms and Molecules. C) Brick. D) None of these. Show Answer Correct Answer: A) Cell. 2. The fish have Lung for respiration A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 3. 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 A) 1 and 3. B) 1 and 4. C) 1 and 2. D) No one. Show Answer Correct Answer: A) 1 and 3. 4. How is energy transformed from photosynthesis through cellular respiration? A) Energy originates from the Sun as a radiant during photosynthesis. It's then converted to chemical energy. In cellular respiration, the energy is converted from chemical energy in the glucose molecule to another form of chemical energy called ATP. B) Chemical energy converts to energy in photosynthesis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Energy originates from the Sun as a radiant during photosynthesis. It's then converted to chemical energy. In cellular respiration, the energy is converted from chemical energy in the glucose molecule to another form of chemical energy called ATP. 5. Breathing involves the upward movement of the diaphragm. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. ....to all the cells where it will be break down/oxidized for the release of energy A) Food. B) Water. C) Air. D) None of these. Show Answer Correct Answer: A) Food. 7. What ultimately occurs during respiration is A) Synthesis of ATP. B) Electron transport. C) Break down of ATP. D) Capture of solar energy. Show Answer Correct Answer: A) Synthesis of ATP. 8. Our muscle cells do anaerobic respiration only when there is temporary deficiency of oxygen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Fill in the blank in the given equation of aerobic respiration-Glucose + ..... $\rightarrow$ carbon dioxide + water + energy A) Water. B) Oxygen. C) Ethyl alcohol. D) Nitrogen. Show Answer Correct Answer: B) Oxygen. 10. In plants water is transported through A) Xylam. B) Xylen. C) Xylem. D) Situem. Show Answer Correct Answer: C) Xylem. 11. Tiny openings on the bark of the tree for exchange of gases are called A) Stomata. B) Lenticels. C) Blow hole. D) Root hair. Show Answer Correct Answer: B) Lenticels. 12. What is the role of the trachea in the respiratory system? A) To filter and humidify air. B) To exchange gases. C) To transport air to the lungs. D) To produce sound. Show Answer Correct Answer: C) To transport air to the lungs. 13. Describe the process of breathing in humans. A) Breathing in humans involves only the movement of the arms and legs. B) Humans breathe by absorbing oxygen through their skin. C) Breathing in humans is the process of inhaling air into the lungs and exhaling it out, facilitated by the diaphragm and intercostal muscles. D) Breathing is solely controlled by the brain without any muscle involvement. Show Answer Correct Answer: C) Breathing in humans is the process of inhaling air into the lungs and exhaling it out, facilitated by the diaphragm and intercostal muscles. 14. In animals like cow, buffalo, dog and cat the respiratory organs and the process of breathing are similar to those in ..... A) ALIENS. B) HUMAN BEINGS. C) All the above. D) None of the above. Show Answer Correct Answer: B) HUMAN BEINGS. 15. In respiration, pyruvic acid is A) Formed only when the cell is with mitochondria. B) Formed only when oxygen is available. C) Formed only when cell is performing aerobic respiration. D) Commonly formed as intermediate product of aerobic and anaerobic respiration. Show Answer Correct Answer: D) Commonly formed as intermediate product of aerobic and anaerobic respiration. 16. In Inhalation, ribs move A) Up and outwards and diaphragm moves down. B) Down and inwards while diaphragm moves up. C) All the above. D) None of the above. Show Answer Correct Answer: A) Up and outwards and diaphragm moves down. 17. Cellular respiration takes place in which eukaryotic organelle? A) Mitochondria. B) Ribosome. C) Chloroplast. D) Cytoplasm. Show Answer Correct Answer: A) Mitochondria. 18. What is the main goal of Cellular Respiration? A) To break down Glucose in the form of ATP. B) To make Glucose which we use for energy. C) To create Carbon Dioxide for plants. D) Respiration is a byproduct of photosynthesis. Show Answer Correct Answer: A) To break down Glucose in the form of ATP. 19. Fermentation occurs in a cell's cytoplasm, not in the mitochondria. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. What is the main difference between aerobic and anaerobic respiration? A) Aerobic respiration requires oxygen, anaerobic does not. B) Aerobic respiration occurs in plants, anaerobic in animals. C) Aerobic respiration produces more energy than anaerobic. D) Aerobic respiration occurs in the dark, anaerobic in light. Show Answer Correct Answer: A) Aerobic respiration requires oxygen, anaerobic does not. 21. We get relief from cramps after A) Hot water bath. B) Massage. C) All of these. D) None of the above. Show Answer Correct Answer: C) All of these. 22. Cilia present in the upper part of respiratory tract, helps to remove germs and dust. Smoking ..... these hair. A) Maintains. B) Destroys. C) Produces. D) None of the above. Show Answer Correct Answer: B) Destroys. 23. Which of these juices is secreted by pancreas? A) Trypsin. B) Pepsin. C) Bile juice. D) Both I and II. Show Answer Correct Answer: D) Both I and II. 24. Adaptation is a short term change, acclimatization is a long term change with respect to the surroundings. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. Write the full form of ATP A) Adenosine diphosphate. B) Adenosine triphosphate. C) Adenosine phosphate. D) None of the above. Show Answer Correct Answer: B) Adenosine triphosphate. ← 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