This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Diaphragm present in mammals is A) Membrane between external and middle ear. B) Membrane around the brain. C) Partition between the thoracic and abdominal cavities. D) Membrane around lungs. Show Answer Correct Answer: C) Partition between the thoracic and abdominal cavities. 2. Yeast is a A) Multicellular. B) Carnivore. C) Anaerobic. D) Aerobic. Show Answer Correct Answer: C) Anaerobic. 3. Frogs breath through their skins as well as their lungs. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 4. The number of times a person breathes in a minute is breathing rate. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. Organisms get energy through A) Food. B) Eating. C) Sleeping. D) None of these. Show Answer Correct Answer: A) Food. 6. The skin of an earthworm is- A) Moist and rough. B) Rough and slimy. C) Moist and slimy. D) Fry and rough. Show Answer Correct Answer: C) Moist and slimy. 7. Which of the following is not respire through skin A) Earth warm. B) Frog. C) Salamander. D) None of these. Show Answer Correct Answer: C) Salamander. 8. Which of the following organisms respire through tracheal system? A) Earthworm. B) Cockroach. C) Fish. D) Frog. Show Answer Correct Answer: B) Cockroach. 9. A large amount of energy is released in anaerobic respiration A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. ..... is composed of a fluid A) Water. B) Blood vessel. C) Blood. D) None of the above. Show Answer Correct Answer: C) Blood. 11. Breathing is a process that-i) provides oxygen to the body.ii) breaks down food to release energy.iii) helps the body to get rid of Carbon dioxide.iv) produces water in the body.Which among the given options is true? A) (I) & (II). B) (i) & (iii). C) (ii) & (iii). D) (iiii) & (iv). Show Answer Correct Answer: B) (i) & (iii). 12. Which terms best describe autotrophs? A) Plants; producers. B) Animals; producers. C) Plants; consumers. D) Animals; consumers. Show Answer Correct Answer: A) Plants; producers. 13. Which organelle is responsible for cellular respiration? A) Nucleus. B) Mitochondria. C) Chloroplast. D) Endoplasmic reticulum. Show Answer Correct Answer: B) Mitochondria. 14. Organisms such as yeast that can survive in the absence of air. they are called ..... A) Aerobic respiration. B) Respiration. C) Anaerobic respiration. D) Anaerobes. Show Answer Correct Answer: D) Anaerobes. 15. What is the role of hemoglobin in respiration? A) Hemoglobin is responsible for the production of red blood cells in the bone marrow. B) Hemoglobin regulates blood pH levels by binding to hydrogen ions. C) Hemoglobin absorbs carbon dioxide in the lungs and releases oxygen in the tissues. D) Hemoglobin transports oxygen from the lungs to the body's tissues and carries carbon dioxide back to the lungs. Show Answer Correct Answer: D) Hemoglobin transports oxygen from the lungs to the body's tissues and carries carbon dioxide back to the lungs. 16. In an energy pyramid, which way does energy flow? A) From the top of the pyramid to the bottom. B) From the bottom of the pyramid to the top. C) None of these. D) None of the above. Show Answer Correct Answer: B) From the bottom of the pyramid to the top. 17. During inhalation the diaphragm moves ..... and the ribcage moves ..... A) Up and downwards & inward. B) Down and upward & outward. C) Does not move. D) None. Show Answer Correct Answer: B) Down and upward & outward. 18. One molecule given off by animals during cellular respiration is A) Carbon dioxide. B) Oxygen. C) Glucose. D) Chlorophyll. Show Answer Correct Answer: A) Carbon dioxide. 19. ..... is the outside growth of abnormal cells in the body ..... is an uncontrolled growth of abnormal cells in body A) KanserCancer. B) RiketRicket. C) Skurviscurvy. D) None of the above. Show Answer Correct Answer: A) KanserCancer. 20. Which of the following shows the correct sequence of air passage into the lungs? A) Trachea $\rightarrow$ larynx $\rightarrow$ air sacs $\rightarrow$ bronchi. B) Larynx $\rightarrow$ trachea $\rightarrow$ bronchi $\rightarrow$ air sacs. C) Air sacs $\rightarrow$ larynx $\rightarrow$ trachea $\rightarrow$ bronchi. D) Larynx $\rightarrow$ bronchi $\rightarrow$ trachea $\rightarrow$ air sacs. Show Answer Correct Answer: B) Larynx $\rightarrow$ trachea $\rightarrow$ bronchi $\rightarrow$ air sacs. 21. Which one is written about diaphragm in the below options? A) Don't know the correct answer. B) A large muscular sheet that forms the floor of the chest cavity the muscular sheet is diaphragm. C) That covers the lungs like a protective cage diaphragm. D) None of these. Show Answer Correct Answer: B) A large muscular sheet that forms the floor of the chest cavity the muscular sheet is diaphragm. 22. One set of inhalation and exhalation is called ..... A) Breathing. B) A breath cycle. C) The breathing rate. D) Respiration. Show Answer Correct Answer: B) A breath cycle. 23. The process of producing energy from the food due to its reaction with oxygen is called ..... A) Breathing. B) Respiration. C) Excretion. D) Secretion. Show Answer Correct Answer: B) Respiration. 24. Inhaling & exhaling of air is called as ..... A) Respiration. B) Inspiration. C) Breathing. D) Expiration. Show Answer Correct Answer: C) Breathing. 25. Which part of the plant absorbs oxygen from the soil? A) Leaves. B) Stems. C) Flowers. D) Roots. Show Answer Correct Answer: D) Roots. ← 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