This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 6 Respiration In Organisms – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 6 Respiration In Organisms Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Cellular respiration is carried out in the A) Cells. B) Tissues. C) Muscles. D) Organs. Show Answer Correct Answer: A) Cells. 2. Write the correct sequence of air passage involved in inhalation? A) Larynx$\rightarrow$ Nostrils $\rightarrow$ Pharynx $\rightarrow$ lungs. B) Nostrils$\rightarrow$ Pharynx$\rightarrow$ larynx$\rightarrow$ Trachea $\rightarrow$ alveoli. C) Nasal passage $\rightarrow$ larynx $\rightarrow$ Trachea $\rightarrow$ Pharynx$\rightarrow$ Alveoli. D) None. Show Answer Correct Answer: B) Nostrils$\rightarrow$ Pharynx$\rightarrow$ larynx$\rightarrow$ Trachea $\rightarrow$ alveoli. 3. Match the process with the correct organelle. A) Photosynthesis occurs in the chloroplast; Respiration occurs in the chloroplast. B) Photosynthesis occurs in the mitochondria; Respiration occurs in the ribosome. C) Photosynthesis occurs in the chloroplast; Respiration occurs in the mitochondria. D) Photosynthesis occurs in the ribosome; Respiration occurs in the mitochondria. Show Answer Correct Answer: C) Photosynthesis occurs in the chloroplast; Respiration occurs in the mitochondria. 4. Which organism respirates by diffusion of gases through their moist body surface or skin? A) Amoeba. B) Hydra. C) Tadpole. D) Caterpillar. Show Answer Correct Answer: B) Hydra. 5. Breathing is a ..... process. A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 6. Cellular respiration is ..... A) The process by which cells obtain energy from glucose. B) Process by which organisms absorb energy from the sun. C) The process by which cells divide. D) The process by which cells process carbon dioxide. Show Answer Correct Answer: A) The process by which cells obtain energy from glucose. 7. What gas is released as a byproduct of respiration? A) Carbon dioxide. B) Nitrogen. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: A) Carbon dioxide. 8. What will happen when the diaphragm raises upwards? A) Air is pulled in. B) Air is forced out. C) We inhale air. D) No change. Show Answer Correct Answer: B) Air is forced out. 9. Respiration is ..... A) Breaking down food. B) Making noise. C) Inhaling and Exhaling Air. D) Producing energy from glucose. Show Answer Correct Answer: D) Producing energy from glucose. 10. During glycolysis large amounts of usable energy called ..... are produced. A) Cellular respiration. B) Cytoplasm. C) Mitochondria. D) ATP. E) Oxygen. Show Answer Correct Answer: D) ATP. 11. What is fermentation? A) A method of breathing. B) A way to absorb oxygen. C) A type of aerobic respiration. D) A process of anaerobic break down of glucose. Show Answer Correct Answer: D) A process of anaerobic break down of glucose. 12. State True or FalseGills take in oxygen from the water while lungs take in oxygen from the air. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Lungs are present in the chest cavity chest cavity (Fig. 10.4). This cavity is chest cavity surrounded by ..... on the sides A) RIBS. B) HANDS. C) All the above. D) None of the above. Show Answer Correct Answer: A) RIBS. 14. What type of respiration requires oxygen? A) Aerobic. B) Anaerobic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Aerobic. 15. The percentage of oxygen in exhaled air? A) 21%. B) 0.04%. C) 4.4%. D) 16.4%. Show Answer Correct Answer: D) 16.4%. 16. Root cells A) I. don't need oxygen, they get it from leaves. B) Ii. use root hair to take in air present between soil particles. C) Iii. use stomata to take in air present between soil particles. D) Iv. none of the above. Show Answer Correct Answer: B) Ii. use root hair to take in air present between soil particles. 17. How do fish breathe underwater? A) Fish breathe underwater using gills to extract oxygen from water. B) Fish breathe through their skin to absorb oxygen. C) Fish extract oxygen from the surface of the water. D) Fish use lungs to breathe air like mammals. Show Answer Correct Answer: A) Fish breathe underwater using gills to extract oxygen from water. 18. The balloon like structures present in the lungs are called as A) Blood vessels. B) Alveoli. C) Air bladder. D) None of the above. Show Answer Correct Answer: B) Alveoli. 19. The name of the kingdom that contains unicellular eukaryotes is: A) Bacteria. B) Fungi. C) Protozoa. D) Protista. Show Answer Correct Answer: D) Protista. 20. Which of these is the correct formula for cellular respiration? A) Oxygen + carbon = energy + glucose. B) Glucose + carbon dioxide = water + oxygen. C) Glucose + oxygen = carbon dioxide + water + energy. D) Carbon dioxide + water + energy = glucose + oxygen. Show Answer Correct Answer: C) Glucose + oxygen = carbon dioxide + water + energy. 21. Read the following statements correctly:a) All green plants are angiosperms.b) Angiosperms have seeds enclosed within fruit.Now, choose the correct option from the choices given below: A) Only (a) is correct. B) Only (b) is correct. C) (a) and (b) are correct. D) (a) is correct and (b) is its explanation. Show Answer Correct Answer: B) Only (b) is correct. 22. Diaphragm moves ..... and ..... itself during exhalation A) Down, contracts. B) Right, contracts. C) Up, relaxes. D) Left, relaxes. Show Answer Correct Answer: C) Up, relaxes. 23. Bacteria & fungus are examples of ..... A) Decomposersers. B) Scavengers. C) Autotrophs. D) Omnivores. Show Answer Correct Answer: A) Decomposersers. 24. Which organism among the following respire anaerobically? A) Plant. B) Yeast. C) Animal. D) Humans. Show Answer Correct Answer: B) Yeast. 25. What is the primary purpose of respiration? A) To absorb nutrients from food. B) To regulate body temperature. C) To provide oxygen for energy production and remove carbon dioxide. D) To produce hormones for growth. Show Answer Correct Answer: C) To provide oxygen for energy production and remove carbon dioxide. ← 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