This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Respiration In Organisms > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Breathing rate incase of adult human being is- A) 13-18. B) 72. C) 68-72. D) 20-24. Show Answer Correct Answer: A) 13-18. 2. Lactic acid fermentation occurs in your muscles after a workout because your cells are struggling to get ..... A) Water. B) Oxygen. C) Glucose. D) Sunlight. Show Answer Correct Answer: B) Oxygen. 3. What is the purpose of cellular respiration? A) To break down food to create energy. B) To take in sugar. C) To get rid of carbon dioxide. D) To take in oxygen. Show Answer Correct Answer: A) To break down food to create energy. 4. ..... are the organs of respiration in human. A) Chest. B) Lungs. C) Nose. D) Gills. Show Answer Correct Answer: B) Lungs. 5. Choose all the autotrophs below A) Crocodile. B) Python. C) Bison. D) Grass. E) Camel. Show Answer Correct Answer: D) Grass. 6. Minimum loss of energy takes place while we are A) Sleeping. B) Running. C) Walking. D) Swimming. Show Answer Correct Answer: A) Sleeping. 7. What does the first law of thermodynamics state? A) Metabolism decreases. B) Energy is conserved. C) Entropy increases. D) Chemicals are produced. Show Answer Correct Answer: B) Energy is conserved. 8. What is the energy molecule? A) RNA. B) DNA. C) AAA. D) ATP. Show Answer Correct Answer: D) ATP. 9. ....and ..... , which required for proper functioning of the body of an organism A) Water and air. B) Air and food. C) Water and minerals. D) All of these. Show Answer Correct Answer: C) Water and minerals. 10. Respiration is a chemical reaction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. ..... is the main passageway into and out of the respiratory system. A) Skin pores. B) Nose. C) Ear. D) Mouth. Show Answer Correct Answer: B) Nose. 12. Sometimes when you exercise, your cells do not have enough ..... to make ATP through cellular respiration. A) Carbon dioxide. B) Glycolysis. C) Chlorophyll. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 13. High level of Carbon dioxide can be ..... for our body. A) Good. B) Toxic. C) Bad. D) Healthy. Show Answer Correct Answer: B) Toxic. 14. Which cellular organelle is responsible for manufacturing ATP? A) Mitochondria. B) Chloroplast. C) Nucleus. D) Ribosome. Show Answer Correct Answer: A) Mitochondria. 15. ..... cannot make their own food. A) Organisms. B) Autotrophs. C) Cells. D) Heterotrophs. Show Answer Correct Answer: D) Heterotrophs. 16. Are you all enjoying? A) Yes. B) No. C) Don"t ask. D) None. Show Answer Correct Answer: A) Yes. 17. Which part of the plant is referred as 'tiny holes'? A) Stomata. B) Roots. C) Chloroplasts. D) Petals. Show Answer Correct Answer: A) Stomata. 18. What is the waste energy from respiration given off as? A) Light. B) Kinetic. C) Heat. D) Sound. Show Answer Correct Answer: C) Heat. 19. The system that carries out the transport function in the human body is ..... A) Digestive system. B) Respiratory system. C) Circulatory system. D) Reproductive system. Show Answer Correct Answer: C) Circulatory system. 20. The small openings in the body of a cockroach are called ..... A) Holes. B) Spiracles. C) Tracks. D) Pores. Show Answer Correct Answer: B) Spiracles. 21. Which of the following organs are parts of human respiratory system?I. Pharynx II. Nostrils III. Gullet IV. Wind pipe V. Lungs A) II and V only. B) II, IV and V only. C) I, II, IV and V only. D) All of the above. Show Answer Correct Answer: C) I, II, IV and V only. 22. Primary organ of human respiratory system is: A) Lung. B) Heart. C) Liver. D) Pharynx. Show Answer Correct Answer: A) Lung. 23. The air entering the human respiratory system follows this routes A) Nose, bronchi, trachea. B) Nose, pharynx, larynx, trachea. C) Nose, pharynx, lungs, trachea. D) None of these. Show Answer Correct Answer: B) Nose, pharynx, larynx, trachea. 24. What is the energy currency of cells produced during cellular respiration? A) GTP. B) ATP. C) ADP. D) NADH. Show Answer Correct Answer: B) ATP. 25. Each cell of an organisms performs certain functions such as ..... , ..... , ..... and ..... A) Transport, excretion and reproduction. B) Nutrition, transport and reproduction. C) Nutrition, transport, excretion and reproduction. D) None of the above. Show Answer Correct Answer: C) Nutrition, transport, excretion and reproduction. 26. Which way does the arrow point?? A) North. B) South. C) Energy to Organism. D) Organism to Energy. Show Answer Correct Answer: C) Energy to Organism. 27. Giving out of air rich in CO2 is known as ..... A) Inhalation. B) R. C) Breathing. D) None of the above. Show Answer Correct Answer: B) R. 28. How do fungi and bacteria respire? A) Cellular respiration. B) Fungi and bacteria do not respire at all. C) Anaerobic respiration. D) Aerobic respiration. Show Answer Correct Answer: D) Aerobic respiration. 29. Taking in of air rich in oxygen into the body A) Inhalation. B) Exhalation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Inhalation. 30. Which of these does not require catalysts A) Anaerobic respiration. B) Cellular respiration. C) Internal respiration. D) Breathing. Show Answer Correct Answer: D) Breathing. 31. All living things, from one-celled organisms to humans, do not need energy to survive. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 32. Which animal do respiration through skin A) Fish. B) Plants. C) Grasshopper. D) Frog or earthworms. Show Answer Correct Answer: D) Frog or earthworms. 33. Which pigment is responsible for capturing sunlight in photosynthesis? A) Melanin. B) Hemoglobin. C) Chlorophyll. D) Carotene. Show Answer Correct Answer: C) Chlorophyll. 34. Breathing is ..... A) Breaking down food. B) Making noise. C) Inhaling and Exhaling Air. D) Producing energy from food. Show Answer Correct Answer: C) Inhaling and Exhaling Air. 35. Which of the following are the reactants of photosynthesis? A) H$_{2}$O + CO$_{2 }$+ Sunlight. B) H$_{2}$O + Glucose$_{ }$+ Sunlight. C) Atp + co $ _ {2} $. D) O$_{2}$ + CO$_{2 }$+ Sunlight. Show Answer Correct Answer: A) H$_{2}$O + CO$_{2 }$+ Sunlight. 36. The process of taking at into the body is called A) Exhalation. B) Inhalation. C) Respiration. D) None of the above. Show Answer Correct Answer: B) Inhalation. 37. Which example is an activity that a fish most likely uses to maintain homeostasis within its body? A) Moving to deeper water to regulate metabolic wastes. B) Using camouflage to avoid predators. C) Feeding at night to regulate body temperature. D) Exchanging gases through its gills to regulate oxygen levels. Show Answer Correct Answer: D) Exchanging gases through its gills to regulate oxygen levels. 38. The changes that occur in the body to overcome small problems due to changes in surroundings is known as ..... A) Adaptation. B) Camouflage. C) Evolution. D) Acclimatisation. Show Answer Correct Answer: D) Acclimatisation. 39. Which is an example of an autotroph? A) Sunflower. B) Flea. C) Mouse. D) Snail. Show Answer Correct Answer: A) Sunflower. 40. What types of organisms go through cell respiration? A) Animals only. B) Plants only. C) Non-living organisms. D) All living organisms. Show Answer Correct Answer: D) All living organisms. 41. What is the symbol of gold? A) Ac. B) Al. C) Ag. D) Au. Show Answer Correct Answer: D) Au. 42. How does respiration contribute to the survival of living organisms? A) It causes fatigue and reduces the ability to survive. B) It depletes the oxygen levels in the body, leading to suffocation. C) It has no impact on the survival of living organisms. D) It provides the necessary energy for survival by producing ATP. Show Answer Correct Answer: D) It provides the necessary energy for survival by producing ATP. 43. The process by which living body throw out their waste products inside the body is called ..... A) Secretion. B) Excretion. C) Phototropism. D) Respiration. Show Answer Correct Answer: B) Excretion. 44. Can you name an example of an organism that uses anaerobic respiration? A) Goldfish. B) Yeast. C) E. coli. D) Mushrooms. Show Answer Correct Answer: B) Yeast. 45. Which of the following are the products of respiration? A) Glucose$_{ }$+ Sunlight + CO$_{2}$. B) Co $ _ {2} $ + h $ _ {2} $ o + atp. C) O$_{2}$ + Glucose + ATP. D) CO$_{2 }$+ H$_{2}$O + Sunlight. Show Answer Correct Answer: B) Co $ _ {2} $ + h $ _ {2} $ o + atp. 46. The accumulation of ..... causes muscle cramps. A) A) acetic acid. B) B) nitric acid. C) C) lactic acid. D) None of the above. Show Answer Correct Answer: C) C) lactic acid. 47. Leaf is the site of ..... and ..... process A) Respiration. B) Photosynthesis. C) Both 1 and 2. D) Secreation. Show Answer Correct Answer: C) Both 1 and 2. 48. Why do we get, muscle cramps after heavy exercise? A) It is due to the partial breakdown of glucose to produce lactic acid. B) It is due to the increased supply of oxygen to muscle cells. C) It is due to the complete breakdown of glucose to produce lactic acid. D) It is due to the muscle cells that respire in the presence of oxygen. Show Answer Correct Answer: A) It is due to the partial breakdown of glucose to produce lactic acid. 49. Identify X in the given equation of aerobic respiration?Glucose + X $\rightarrow$ A) Lactic acid. B) Ethyl alcohol. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 50. Which of the following ensures that the air passage does not collapse? A) Mucus glands. B) Fine hairs. C) Alveoli. D) Rings of cartilage. Show Answer Correct Answer: D) Rings of cartilage. 51. Which gas is most abundant in the air that we breathe in? A) Nitrogen. B) Oxygen. C) Water vapour. D) Carbon dioxide. Show Answer Correct Answer: A) Nitrogen. 52. During heavy exercise we get cramps in our muscles, because of the accumulation of A) Lactic acid. B) Water. C) Carbon dioxide. D) Alcohol. Show Answer Correct Answer: A) Lactic acid. 53. Energy is required for which of the following cellular functions? A) Metabolism. B) Movement. C) Growth. D) All of these require energy. Show Answer Correct Answer: D) All of these require energy. 54. The number of times a person breathes in and breathes out in a minute is called A) Birth rate. B) Death rate. C) Breathing rate. D) None of the above. Show Answer Correct Answer: C) Breathing rate. 55. In which part of the cell does respiration occur? A) Vacuole. B) Mitochondria. C) Cell wall. D) Chloroplast. Show Answer Correct Answer: B) Mitochondria. 56. What is the primary function of respiration in living organisms? A) To produce glucose from sunlight. B) To absorb water and release oxygen. C) Obtain energy from oxygen and release carbon dioxide. D) To regulate body temperature. Show Answer Correct Answer: C) Obtain energy from oxygen and release carbon dioxide. 57. On an average, an adult human being at rest breathes in and out ..... times in a minute. A) 40-45. B) 30-35. C) 15-18. D) 20-25. Show Answer Correct Answer: C) 15-18. 58. The plants and animals that live on land are called ..... A) Terrestrial. B) Aquatic. C) Arboreal. D) None of the above. Show Answer Correct Answer: A) Terrestrial. 59. What gas do producers give off as a result of photosynthesis? A) Carbon dioxide. B) Hydrogen. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 60. Most chemical changes in living things cannot take place without ..... A) Oxygen. B) Temperature. C) Air. D) Water. Show Answer Correct Answer: D) Water. ← PreviousNext →Related QuizzesScience QuizzesClass 7 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 7Class 7 Science Chapter 6 Respiration In Organisms Quiz 8Class 7 Science Chapter 6 Respiration In Organisms Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books