This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 14 Respiration In Plants – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 14 Respiration In Plants Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many ATP are produced in aerobic respiration? A) 36. B) 33. C) 4. D) 2. Show Answer Correct Answer: A) 36. 2. Assertion (A):The breakdown of glucose in plants occurs in two main stages:glycolysis and Krebs cycle.Reason (R):Glycolysis occurs in the mitochondria, while Krebs cycle occurs in the cytoplasm. A) Both A and R are true. B) A is true, R is false. C) A is false, R is true. D) Both A and R are false. Show Answer Correct Answer: B) A is true, R is false. 3. Pyruvate which is formed by the glycolytic catabolism of carbohydrates in the cytosol, after it enters into mitochondrial matrix it undergoes: A) Reductive decarboxylation. B) Reductive amination. C) Oxidation decarboxylation. D) Reductive carboxylation. Show Answer Correct Answer: C) Oxidation decarboxylation. 4. In photosynthesis ..... A) Osmosis happens. B) Light energy is changed to glucose. C) Water is chloronated. D) ATP is made. Show Answer Correct Answer: B) Light energy is changed to glucose. 5. Why do plants respire? A) To absorb carbon dioxide. B) To release oxygen. C) To release energy from glucose. D) To produce glucose. Show Answer Correct Answer: C) To release energy from glucose. 6. Prior to entering the Krebs Cycle, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of A) Citrate. B) Oxaloacetate. C) Acetyl-CoA. D) Malate. Show Answer Correct Answer: C) Acetyl-CoA. 7. Plants also take in oxygen from air and give out ..... A) Carbon dioxide. B) Wastes. C) Nutrients. D) Photosynthesis. Show Answer Correct Answer: A) Carbon dioxide. 8. Which step of glycolysis involves consumption of ATP but does not yield any NADH? A) Phosphoenolpyruvate $\rightarrow$ Pyruvate. B) Glyceraldehyde-3-phosphate $\rightarrow$ 1, 3-bisphosphoglycerate. C) Fructose-6-phosphate $\rightarrow$ Fructose-1, 6-bisphosphate. D) Glucose $\rightarrow$ Glucose-6-phosphate. Show Answer Correct Answer: D) Glucose $\rightarrow$ Glucose-6-phosphate. 9. Cell area responsible for incomplete oxidation of glucose into pyruvate is A) Cytoplasm. B) Cytosol. C) Mitochondria. D) Chloroplast. Show Answer Correct Answer: B) Cytosol. 10. How much energy is released during anaerobic respiration compared to aerobic respiration? A) The same amount. B) More energy. C) Less energy. D) No energy. Show Answer Correct Answer: C) Less energy. 11. Which chemical symbol represents a product of aerobic respiration? A) C$_{6}$H$_{12}$0$_{6}$. B) 0$_{2}$. C) CO$_{2}$. D) None of the above. Show Answer Correct Answer: C) CO$_{2}$. 12. What gas is produced by plants during photosynthesis? A) Carbon dioxide. B) Nitrogen. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: C) Oxygen. 13. Do roots absorb oxygen in respiration? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. ATP's full form is ..... A) Adenine tetraphosphate. B) Adenosine triphosphate. C) Adenosine tetraphosphate. D) Adenine triphosphate. Show Answer Correct Answer: B) Adenosine triphosphate. 15. Alat untuk mengukur laju transpirasi tumbuhan disebut ..... A) Potometer. B) Fotometer. C) Respirometer. D) Auksanometer. Show Answer Correct Answer: A) Potometer. 16. What type of respiration does not require oxygen? A) Aerobic. B) Anaerobic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Anaerobic. 17. . According to NCERT, the respiratory quotient (RQ) will be less than 1 when the respiratory substrate is A) Fat. B) Organic acid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: A) Fat. 18. When respiration occurs with oxygen, it is called ..... A) Aerobic. B) Fermentation. C) Anaerobic. D) Light-dependent. Show Answer Correct Answer: A) Aerobic. 19. During anaerobic respiration, yeast converts glucose into A) Lactic acid and CO2. B) Ethanol and CO2. C) Ethanol and water. D) None of the above. Show Answer Correct Answer: B) Ethanol and CO2. 20. Complex II in ETS is also known as ..... A) NADH-dehydrogenase. B) Cytochrome bc complex. C) Cytochrome C oxidase. D) Succinic dehydrogenase. Show Answer Correct Answer: D) Succinic dehydrogenase. 21. Which organism uses Anaerobic Respiration? A) Animals. B) Bacteria. C) Protist. D) Plants. Show Answer Correct Answer: B) Bacteria. 22. Which of the following is made during the Krebs Cycle? A) Carbon Dioxide. B) Oxygen Gas. C) Water. D) Glucose. Show Answer Correct Answer: A) Carbon Dioxide. 23. Q9 Assertion (A):Anaerobic respiration in germinating seeds occurs even when oxygen is absent.Reason (R):Anaerobic respiration produces ethanol, carbon dioxide, and a small amount of energy. A) Both A and R are true. B) A is true, R is false. C) A is false, R is true. D) Both A and R are false. Show Answer Correct Answer: A) Both A and R are true. 24. Which organ is NOT a part of the respiratory system? A) Kidney. B) Nostrils. C) Lungs. D) Larynx. Show Answer Correct Answer: A) Kidney. 25. Conversion of fructose-6-phosphate to fructose 1, 6 diphosphate is catalysed by A) Phosphofructose kinase. B) Aldolase. C) Hexokinase. D) None of the above. Show Answer Correct Answer: A) Phosphofructose kinase. 26. Glycolysis is found in- A) Eukaryotic cells. B) Anaerobic cells. C) Virtually all cells. D) Most muscle cells. Show Answer Correct Answer: C) Virtually all cells. 27. Cytochromes are concerned with ..... A) Protein synthesis. B) Cellulat digestion. C) Cellular respiration. D) Cell divition. Show Answer Correct Answer: C) Cellular respiration. 28. The end products of aerobic respiration can be water and carbon dioxide in A) Yeast. B) Plant cells. C) Methanogens. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 29. What type of respiration occurs in germinating seeds? A) Anaerobic. B) Aerobic. C) Fermentation. D) Photosynthetic. Show Answer Correct Answer: B) Aerobic. 30. The process by which food is oxidized to produce carbon dioxide, water and release energy is called ..... A) Photosynthesis. B) Respiration. C) Nutrition. D) None of the above. Show Answer Correct Answer: B) Respiration. 31. The energy released in respiration process is ..... energy A) Physical. B) Chemical. C) Both physical and chemical. D) None. Show Answer Correct Answer: B) Chemical. 32. The first step of cellular respirations is A) ETC. B) Krebs cycle. C) ATP/ADP cycle. D) Glycolysis. Show Answer Correct Answer: D) Glycolysis. 33. Do roots find oxygen between soil particles? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 34. Warms and filters A) Nose. B) Stomach. C) Small intestine. D) Trachea. Show Answer Correct Answer: A) Nose. 35. The energy released in respiration is in the form of ..... molecule A) ATP. B) Adenosine triphosphate. C) Nitrogen. D) Both 1 and 2. Show Answer Correct Answer: D) Both 1 and 2. 36. The process through which ATP is synthesised by cells is called ..... A) Phosphorylation. B) Phosphorescence. C) Fluorescence. D) Quantum yield. Show Answer Correct Answer: A) Phosphorylation. 37. Photosynthesis happens during A) Night. B) Day. C) Both night and day. D) None. Show Answer Correct Answer: B) Day. 38. Why is there no gas exchange in plants at night? A) Stomata close at night. B) Respiration stops. C) Photosynthesis stops. D) Plants do not need gases at night. Show Answer Correct Answer: A) Stomata close at night. 39. The process through which respiration in plants takes place is called A) Osmosis. B) Diffusion. C) Defraction. D) None of the above. Show Answer Correct Answer: B) Diffusion. 40. There are ..... kind of respiration. A) One. B) Three. C) Four. D) Two. Show Answer Correct Answer: D) Two. 41. Energy is produced by breaking down ..... A) Water. B) Carbon dioxide. C) Oxygen. D) Glucose. Show Answer Correct Answer: D) Glucose. 42. Which gas is absorbed by soda lime in the experiment? A) Oxygen. B) Hydrogen. C) Nitrogen. D) Carbon dioxide ( $CO_2$. Show Answer Correct Answer: D) Carbon dioxide ( $CO_2$. 43. What gas do animals need for aerobic respiration? A) Carbon Dioxide. B) Oxygen. C) Nitrogen. D) Water. Show Answer Correct Answer: B) Oxygen. 44. 1st 5 carbon compound of Kreb cycle also used in reductive amination during nitrogen fixation is A) Succinate. B) Succinyl-CoA. C) OAA. D) A-ketoglutarate. Show Answer Correct Answer: D) A-ketoglutarate. 45. How many molecules of O2 are used and how many CO2 comes out during the glycolytic breakdown of one glucose molecule? A) 0; 0. B) 36; 6. C) 2; 1. D) 1; 2. Show Answer Correct Answer: A) 0; 0. 46. What is the role of NAD+ in cellular respiration? A) It functions as an electron carrier. B) It functions as an enzyme. C) It is the final electron acceptor for anaerobicrespiration. D) It is a nucleotide source for ATP synthesis. Show Answer Correct Answer: A) It functions as an electron carrier. 47. What is the main gas absorbed from the atmosphere during respiration in plants? A) Hydrogen. B) Carbon dioxide. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: C) Oxygen. 48. What would happen if plants did not have enough carbon dioxide to engage in photosynthesis? A) Plants would be able to grow and produce oxygen for animals to breathe. B) Plants would be able to grow but would not be able to produce oxygen for animals to breathe. C) Plant would not be able to grow but would be able to produce oxygen for animals to breathe. D) Plants would not be able to grow and produce oxygen for animals to breathe. Show Answer Correct Answer: D) Plants would not be able to grow and produce oxygen for animals to breathe. 49. Which gas is primarily released by plants during respiration? A) Nitrogen. B) Hydrogen. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 50. Cyanide is a powerful poison because it inhibits an enzyme in mitochondria, preventing the transfer of energy during one of the steps in cellular respiration. The poison would directly affect the production of which of the following molecules? A) Glucose. B) RNA. C) Oxygen. D) ATP. Show Answer Correct Answer: D) ATP. 51. Which molecule is the product of Glycolysis and the reactant of the Krebs Cycle? A) Pyruvic acid. B) Water. C) Carbon dioxide. D) Oxygen. Show Answer Correct Answer: A) Pyruvic acid. 52. A bacteria that has chlorophyll will be able to do A) Photosynthesis. B) Cellular respiration. C) Osmosis. D) Activen transport. Show Answer Correct Answer: A) Photosynthesis. 53. The waste products, carbon dioxide and water are released through the ..... A) Stomata. B) Cell. C) Roots. D) None of the above. Show Answer Correct Answer: A) Stomata. 54. In what form is energy released during respiration? A) Glucose. B) ATP. C) Water. D) Oxygen. Show Answer Correct Answer: B) ATP. 55. What is the process called when carbon dioxide and water react to form glucose and release oxygen in the presence of sunlight? A) Respiration. B) Transpiration. C) Fermentation. D) Photosynthesis. Show Answer Correct Answer: D) Photosynthesis. 56. Large number of enzymes are involved in ..... process. A) Respiration. B) Transpiration. C) Breathing. D) None of the Above. Show Answer Correct Answer: A) Respiration. 57. Under which condition would you expect the mitochondrial proton gradient to be highest and therefore ATP synthesis to proceed? A) Pyruvate (absent)-oxygen (present)-ATP levels (low). B) Pyruvate (present)-oxygen (present)-ATP levels (low). C) Pyruvate (present)-oxygen (absent)-ATP levels (high). D) Pyruvate (present)-oxygen (present)-ATP levels (high). Show Answer Correct Answer: B) Pyruvate (present)-oxygen (present)-ATP levels (low). 58. Which gas is released during anaerobic respiration in plants? A) Hydrogen. B) Oxygen. C) Nitrogen. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 59. The principal substrate that enters the Krebs cycle is A) Glucose. B) Pyruvic acid. C) Acetyl-CoA. D) NADH and FADH2. Show Answer Correct Answer: C) Acetyl-CoA. 60. Which molecule contains the stored chemical energy that is released in aerobic respiration? A) ATP. B) Glucose. C) Carbon Dioxide. D) Oxygen Gas. Show Answer Correct Answer: B) Glucose. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 14 Respiration In Plants Quiz 1Class 11 Biology Chapter 14 Respiration In Plants Quiz 2Class 11 Biology Chapter 14 Respiration In Plants Quiz 3Class 11 Biology Chapter 14 Respiration In Plants Quiz 4Class 11 Biology Chapter 14 Respiration In Plants Quiz 5Class 11 Biology Chapter 14 Respiration In Plants Quiz 7Class 11 Biology Chapter 14 Respiration In Plants Quiz 8Class 11 Biology Chapter 14 Respiration In Plants Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books