This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is a single celled organisms used to make wine? A) Amoeba. B) Yeast. C) All the above. D) None of the above. Show Answer Correct Answer: B) Yeast. 2. How does the respiratory system in humans maintain the balance of oxygen and carbon dioxide in the body? A) Through the process of gas exchange in the lungs. B) By filtering the air through the kidneys. C) By absorbing oxygen through the skin. D) By converting carbon dioxide into oxygen. Show Answer Correct Answer: A) Through the process of gas exchange in the lungs. 3. Fish breath through there ..... A) Lungs. B) Skin. C) Gills. D) None of these. Show Answer Correct Answer: C) Gills. 4. Inhalation is A) The process of taking in air containing oxygen. B) The process of giving out rich containing carbon dioxide. C) All the above. D) None of the above. Show Answer Correct Answer: A) The process of taking in air containing oxygen. 5. Fish breathe through there ..... A) Lungs. B) Skin. C) Gills. D) Spiracles. Show Answer Correct Answer: C) Gills. 6. Which are the gases involved in breathing? A) O2 and NO2. B) O2 and SO2. C) O2 and O3. D) O2 and CO2. Show Answer Correct Answer: D) O2 and CO2. 7. The end products of aerobic 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: A) Carbondioxide, water, energy. 8. When anaerobic respiration takes place in yeast cells it is called A) Photosynthesis. B) Fermentation. C) Both of these. D) None of these. Show Answer Correct Answer: B) Fermentation. 9. Find an example of anaerobs A) Milk. B) Yeast. C) Water. D) All of these. Show Answer Correct Answer: B) Yeast. 10. Plants use this gas during respiration A) Nitrogen. B) Carbon dioxide. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: C) Oxygen. 11. How is cellular respiration different from photosynthesis? A) Photosynthesis produces ATP, cellular respiration produces sugars. B) Photosynthesis requires oxygen, cellular respiration requires oxygen. C) Photosynthesis produces oxygen, cellular respiration produces carbon dioxide. D) Photosynthesis requires energy from food, cellular respiration requires energy from the sun. Show Answer Correct Answer: C) Photosynthesis produces oxygen, cellular respiration produces carbon dioxide. 12. Name the two main types of respiration. A) Photosynthesis and fermentation. B) Oxidative phosphorylation and glycolysis. C) Aerobic respiration and anaerobic respiration. D) Cellular respiration and combustion. Show Answer Correct Answer: C) Aerobic respiration and anaerobic respiration. 13. Name one organism that primarily uses anaerobic respiration. A) Saccharomyces cerevisiae. B) Streptococcus pneumoniae. C) They exhibited chill. D) Clostridium botulinum. Show Answer Correct Answer: A) Saccharomyces cerevisiae. 14. What is the process by which plants convert light energy into chemical energy? A) Respiration. B) Transpiration. C) Photosynthesis. D) Germination. Show Answer Correct Answer: C) Photosynthesis. 15. All the living organisms are made up of small microscopic units called ..... A) Bacteria. B) Cell. C) Virus. D) None of the above. Show Answer Correct Answer: B) Cell. 16. What causes muscle cramps in humans? A) Acetic acid. B) Lactic acid. C) Oxalic acid. D) None of the above. Show Answer Correct Answer: B) Lactic acid. 17. They give us the ability to see, feel, hear, smell and taste. A) Human body systems. B) Eyes. C) Ears. D) Hair. Show Answer Correct Answer: A) Human body systems. 18. Plants take in ..... during respiration and carbon-dioxide during photosynthesis A) Water. B) Water vapour. C) Oxygen. D) None of the above. Show Answer Correct Answer: C) Oxygen. 19. The oxygen we inhale is used to- A) 4 ) argon. B) 1 ) break down glucose into carbon dioxide. C) 2 ) and water also. D) 3) both 1 and 2 option. Show Answer Correct Answer: D) 3) both 1 and 2 option. 20. Cellular respiration takes place in the ..... A) Mitochondria. B) Chloroplast. C) Chlorophyll. D) Lungs. Show Answer Correct Answer: A) Mitochondria. 21. Plants prepare their own food by a process called ..... A) Oxidation. B) Respiration. C) Photosynthesis. D) None of the above. Show Answer Correct Answer: C) Photosynthesis. 22. Animal cells do not have ..... Animal cell does not have ..... A) Membrane Selllel Membrane. B) NukleusNucleus. C) Wall Cellcel Wall. D) Sitoplasmacytoplasm. Show Answer Correct Answer: C) Wall Cellcel Wall. 23. Complex tissue filaments in fish that are branched and folded A) Spiracles. B) Lungs. C) Gills. D) Windpipe. Show Answer Correct Answer: C) Gills. 24. What happens during cellular respiration? A) Glucose is broken down, releasing energy. B) Carbohydrates are released into the bloodstream. C) Water and carbon dioxide are converted into energy. D) None of the above. Show Answer Correct Answer: A) Glucose is broken down, releasing energy. 25. What is the primary purpose of respiration in living organisms? A) To produce energy. B) To absorb nutrients. C) To eliminate waste. D) To regulate temperature. Show Answer Correct Answer: A) To produce energy. ← 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 10Class 7 Science Chapter 6 Respiration In Organisms Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books