This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. After heavy exercise, due to the accumulation of which substance we get muscle cramps? A) Malaic acid. B) Fumaric acid. C) Lipoic acid. D) Lactic acid. Show Answer Correct Answer: D) Lactic acid. 2. The process of breakdown of food in the cell with the release of energy is called A) Aerobic respiration. B) Anaerobic Respiration. C) Cellular Respiration. D) None of these. Show Answer Correct Answer: C) Cellular Respiration. 3. Organisms that make energy from the sun are called ..... A) Hetertrophs. B) Autotrophs. C) Carbohydrates. D) Consumer. Show Answer Correct Answer: B) Autotrophs. 4. Normally we take in air through our ..... A) NOSTRILS. B) EARS. C) All the above. D) None of the above. Show Answer Correct Answer: A) NOSTRILS. 5. Which equation shows the reaction for anaerobic respiration A) Carbon dioxide + water $\rightarrow$ glucose and oxygen. B) Glucose + Oxygen $\rightarrow$ lactic acid and energy. C) Glucose + oxygen $\rightarrow$ carbon dioxide and water and energy. D) Glucose $\rightarrow$ lactic acid and energy. Show Answer Correct Answer: D) Glucose $\rightarrow$ lactic acid and energy. 6. ..... is the common passage for food and air in humans A) Larynx. B) Trachea. C) Epiglottis. D) Pharynx. Show Answer Correct Answer: D) Pharynx. 7. The energy needed for photosynthesis is A) Light energy from the sun. B) Chemical energy stored in molecules. C) Potential energy. D) None of the above. Show Answer Correct Answer: A) Light energy from the sun. 8. The partial breakdown of glucose produces A) Lactic Acid. B) Citric acid. C) Tartaric Acid. D) Maleic Acid. Show Answer Correct Answer: A) Lactic Acid. 9. Respiration is a A) Physical process. B) Chemical process. C) Both physical and chemical process. D) None of the above. Show Answer Correct Answer: C) Both physical and chemical process. 10. In fishes it takes place through ..... A) GILLS. B) GULLS. C) SKIN. D) LEGS. Show Answer Correct Answer: A) GILLS. 11. Conversion of pyruvate into ethanol and carbon dioxide in yeast takes place during ..... A) Aerobic respiration. B) Breathing. C) Fermentation. D) None of the above. Show Answer Correct Answer: C) Fermentation. 12. Identify 'x' in the given equation and also find which respiration is it.(C$_{6}$H$_{12}$O$_{6 }$+ X $\rightarrow$ CO$_{2}$ + H$_{2}$O + Energy)Select Accordingly A) Oxygen [6O$_{2}$]$_{, Aerobic Respiration}$. B) Oxygen [O$_{2}$], Anaerobic Respiration. C) All the above. D) None of the above. Show Answer Correct Answer: A) Oxygen [6O$_{2}$]$_{, Aerobic Respiration}$. 13. Cockroaches have a network air tubes called? A) Spiracles. B) Tracheae. C) Gills. D) Lungs. Show Answer Correct Answer: B) Tracheae. 14. What are the inputs, or reactants, that cells use in cellular respiration? A) Carbon dioxide and water. B) Starch and protein. C) Amino acids and glucose. D) Glucose and oxygen. Show Answer Correct Answer: D) Glucose and oxygen. 15. What are the products of anaerobic respiration? A) Glucose and oxygen. B) Carbon dioxide and water. C) Lactic acid. D) Carbon monoxide. Show Answer Correct Answer: C) Lactic acid. 16. A wolf eats a rabbit, that just ate some berries. What would you call the rabbit? A) Producer. B) Omnivore. C) Primary Consumer. D) 2nd order Heterotrph. Show Answer Correct Answer: C) Primary Consumer. 17. How does water decompose into a mixer of hydrogen and oxygen? A) Electric current. B) Chemical reactions. C) All the above. D) None of the above. Show Answer Correct Answer: A) Electric current. 18. How would the absence of sunlight affect a plant's ability to grow? A) The plant could not absorb nutrients from soil. B) The plant could not absorb water from the soil. C) The plant could not produce carbon dioxide and oxygen. D) The plant could not produce food through photosynthesis. Show Answer Correct Answer: D) The plant could not produce food through photosynthesis. 19. Which respiratory organ do fish use? A) Trachea. B) Gills. C) Lungs. D) Skin. Show Answer Correct Answer: B) Gills. 20. Your muscle cells can use lactic-acid fermentation to obtain energy during exercise. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. Where in the respiratory system does oxygen from air breathed in pass into the blood? A) Trachea. B) Bronchi. C) Bronchioles. D) Alveoli. Show Answer Correct Answer: D) Alveoli. 22. Which of the following best describes the overall purpose of cellular respiration? A) To use energy from the sun to produce food (glucose). B) To use energy from the sun to produce oxygen. C) Break down food (glucose) in order to produce energy (ATP). D) Take in oxygen in order to be able to produce energy (ATP) Take in oxygen in order to be able to produce energy (ATP). Show Answer Correct Answer: C) Break down food (glucose) in order to produce energy (ATP). 23. Exhaled air contains A) 21% of O2, 0.04% of CO2. B) 16% of O2, .44% of CO2. C) All the above. D) None of the above. Show Answer Correct Answer: B) 16% of O2, .44% of CO2. 24. What is the role of chlorophyll in photosynthesis? A) Chlorophyll provides structural support to plants. B) Chlorophyll absorbs carbon dioxide and releases oxygen. C) Chlorophyll captures light energy and converts it into chemical energy. D) Chlorophyll helps in the process of cell division. Show Answer Correct Answer: C) Chlorophyll captures light energy and converts it into chemical energy. 25. What is the role of the diaphragm in the respiratory process? A) To transport oxygen. B) To facilitate inhalation and exhalation. C) To filter out pollutants. D) To absorb nutrients. Show Answer Correct Answer: B) To facilitate inhalation and exhalation. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books