This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 14 Respiration In Plants – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 14 Respiration In Plants Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Glycolysis alone can account for the complete oxidation of glucose in plant cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. Why is respiration important for plants? A) Respiration provides energy for growth and other life processes. B) Respiration helps plants absorb sunlight for photosynthesis. C) Respiration allows plants to take in minerals from the soil. D) Respiration helps plants lose water through transpiration. Show Answer Correct Answer: A) Respiration provides energy for growth and other life processes. 3. In plants, energy is obtained from the sun in the form of solar energy and stored in the form of complex organic matter. Where is it used? A) Used for carrying unuseful tissues out of the plant. B) Used for seeing the stomata easily with a microscope. C) Used for performing various essential functions of life by the plant. D) Plants only know. Show Answer Correct Answer: C) Used for performing various essential functions of life by the plant. 4. Stomata are present in the A) Upperside of the leaves. B) Underside of the leaves. C) On the stem. D) All of the above. Show Answer Correct Answer: B) Underside of the leaves. 5. Which inspiration steps are in the correct order A) Air forced in, diaphragm relaxes, air pressure raises. B) Diaphragm contracts, air pressure lowers, air forced in. C) Air pressure raises, air forced out, diaphragm contracts. D) Diaphragm relaxes, air pressure drops, air forced in. Show Answer Correct Answer: B) Diaphragm contracts, air pressure lowers, air forced in. 6. What is the main purpose of the respiratory electron transport chain? A) Convert energy from oxygen into energy in ATP. B) Convert energy from NADH and FADH2 into energy in ATP. C) Convert energy from NAD+ and FAD+ into energy in ATP. D) Convert energy from acetyl-CoA into energy in ATP. Show Answer Correct Answer: B) Convert energy from NADH and FADH2 into energy in ATP. 7. End products of anaerobic respiration. A) Carbon dioxide and water. B) Ethanol and water. C) Ethanol and Carbon dioxide. D) Ethanol. Show Answer Correct Answer: C) Ethanol and Carbon dioxide. 8. Which of the following type of simple epithelium tissue present in the lining of the stomach and intestine? A) Columnar epithelium. B) Squamous epithelium. C) Ciliated epithelium. D) Cuboidal epithelium. Show Answer Correct Answer: A) Columnar epithelium. 9. For gaseous exchange plants have- A) Stomata. B) Lenticels. C) Porin. D) A and b. Show Answer Correct Answer: D) A and b. 10. The end product/products of oxidative phosphorylation is/are A) NADH. B) Oxygen. C) ADP. D) ATP + H2O. Show Answer Correct Answer: D) ATP + H2O. 11. Aerial roots are seen in ..... A) Tropical forest. B) Rainforest. C) Black mangroves. D) All of the aboveAll of the above. Show Answer Correct Answer: C) Black mangroves. 12. The "regenerator" of the Krebs Cycle is: A) Oxaloacetate. B) Acetyl-CoA. C) Citrate. D) $\alpha$-Ketoglutarate. Show Answer Correct Answer: A) Oxaloacetate. 13. Photosynthesis is the same as Respiration? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. What is the byproduct of anaerobic respiration in muscles? A) Water. B) Glucose. C) Carbon dioxide. D) Lactic acid. Show Answer Correct Answer: D) Lactic acid. 15. Oxidative phosphorylation is:- A) Addition of phosphate group to ATP. B) Formation of ATP by energy released from electrons removed during substrate oxidation. C) Formation of ATP by transfer of phosphate group from a substrate to ADP. D) Oxidation of phosphate group in ATP. Show Answer Correct Answer: B) Formation of ATP by energy released from electrons removed during substrate oxidation. 16. Respiration in plants is represented as A) Sugar + oxygen $\rightarrow$ energy + carbon dioxide + water. B) Energy $\rightarrow$ oxygen + water + sugar. C) Carbon dioxide + sugar $\rightarrow$ oxygen + water + energy. D) None of the above. Show Answer Correct Answer: A) Sugar + oxygen $\rightarrow$ energy + carbon dioxide + water. 17. What is the product of aerobic respiration? A) Ethyl alcohol, carbon dioxide, energy. B) Carbon dioxide, water, energy. C) Carbon dioxide, ethyl alcohol, water. D) Energy, water, ethyl alcohol. Show Answer Correct Answer: B) Carbon dioxide, water, energy. 18. Which of these is a correct word equation for anaerobic respiration in plants? A) Glucose + oxygen $\rightarrow$ carbon dioxide + water. B) Glucose $\rightarrow$ ethanol + carbon dioxide + energy. C) Carbon dioxide + water $\rightarrow$ glucose + oxygen. D) Ethanol + oxygen $\rightarrow$ carbon dioxide + water. Show Answer Correct Answer: B) Glucose $\rightarrow$ ethanol + carbon dioxide + energy. 19. In which of the following reactions of glycolysis, a molecule of water is removed from the substrate? A) Glucose $\rightarrow$ Glucose-6-phosphate. B) Fructose-6-phosphate $\rightarrow$ Fructose-1, 6 bisphosphate. C) 2-phosphoglycerate $\rightarrow$ Phosphoenolpyruvate. D) Phosphoenolpyruvate $\rightarrow$ Pyruvate. Show Answer Correct Answer: C) 2-phosphoglycerate $\rightarrow$ Phosphoenolpyruvate. 20. During glycolysis, ATP molecules are consumed in which steps? A) Step 1 and 3. B) Step 2 and 4. C) Step 6 and 7. D) Step 8 and 10. Show Answer Correct Answer: A) Step 1 and 3. 21. Plants produce glucose through the process of ..... A) Photosynthesis. B) Cellular respiration. C) All the above. D) None of the above. Show Answer Correct Answer: A) Photosynthesis. 22. When a leaf is magnified, we see a structure which can open and close for gaseous exchange. A) Lenticel. B) Stoma. C) Guard cell. D) Chloroplast. Show Answer Correct Answer: B) Stoma. 23. Which of the following is not a requirement for the Krebs Cycle? A) NAD+. B) FAD+. C) Water. D) Pyruvate. Show Answer Correct Answer: D) Pyruvate. 24. Where does glycolysis happen? A) Cell Membrane. B) Chloroplast. C) Cytoplasm. D) Mitochondria. Show Answer Correct Answer: C) Cytoplasm. 25. How do plants obtain the oxygen required for respiration? A) From the soil. B) Through stomata. C) From water. D) Through roots. Show Answer Correct Answer: B) Through stomata. 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