NCERT CLASS 11 | TOPIC : PLANT PHYSIOLOGY-RESPIRATION | QB-1 | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : PLANT PHYSIOLOGY-RESPIRATION | QB-1 | NEET BIOLOGY ONLINE TEST

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It contains 97 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : www.onlinetest.kalvisolai.com

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1 ➤ 1. Partial oxidation of glucose without the help of oxygen into pyruvic acid is known as

(a) Glycolysis (b) Kreb’s cycle (c) ETS (d) All of these

2 ➤ 2. The scheme of glycolysis is given by

(a) Embden (b) Meyerhof (c) Parnas (d) All of these

3 ➤ 3. Which of the following is correct about glycolysis (EMP pathway)?

(a) It is a common path for aerobic and anaerobic respiration. (b) It occurs in cytoplasm. (c) O2 is not required for this process. (d) All the above

4 ➤ 4. Number of controlled steps required in glycolysis are:

(a) 1 (b) 5 (c) 10 (d) 15

5 ➤ 5. In plant the end product of photosynthesis is

(a) Sucrose (b) Starch (c) Glycogen (d) Glucose

6 ➤ 6. The enzyme which converts sucrose to glucose and fructose.

(a) Maltase (b) Invertase (c) Lactase (d) Hexokinase

7 ➤ 7. Glucose → Glu-6-phosphate occurs due to the enzyme

(a) Hexokinase (b) Oxidase (c) Hydrolase (d) Lysase

8 ➤ 8. Common to all living organism is

(a) Kreb’s cycle (b) EMP pathway (c) ETC (d) All of these

9 ➤ 9. 1 molecule of glucose on glycolysis produces

(a) 2 molecule of pyruvic acid (b) 1 molecule of pyruvic acid (c) 2 molecule of CO2 (d) 2 molecule of O2

10 ➤ 10. Which of the following is a energy yielding process?

(a) 2-phosphoglycerate to 2-phosphoenolpyruvate (b) Frutose to fructose-6-phosphate (c) Phosphoenolpyruvic acid to pyruvic acid (d) Fructose 1, 6-bisphosphate to PGAL and DHAP

11 ➤ 11. Yeast poisons themselves to death when alcohol concentration reaches to ________ in alcoholic fermentation.

(a) 2% (b) 10% (c) 13% (d) 20%

12 ➤ 12. Lactic acid fermentation occurs in

(a) Some bacteria (b) Muscle cell under anaerobic condition (c) Both (a) and (b) (d) Aerobic condition

13 ➤ 13. How much percentage of energy is released in fermentation?

(a) < 1% (b) < 7% (c) > 10% (d) > 20%

14 ➤ 14. Which of the following relation shows substrate level phosphorylation?

(a) Citric acid → α-ketoglutaric acid (b) Malic acid → oxaloacetic acid (c) α-ketoglutaric acid → Succinyl-CoA (d) Succinyl-CoA → Succinic acid

15 ➤ 15. Which of the following is a ‘5C’ compound?

(a) Oxaloacetic acid (b) Citric acid (c) α-ketoglutaric acid (d) Succinic acid

16 ➤ 16. At how many places in Kreb’s cycle NADH + H+ is formed?

(a) 1 (b) 2 (c) 3 (d) 4

17 ➤ 17. At how many places in Kreb’s cycle FADH2 is formed?

(a) 1 (b) 2 (c) 3 (d) 4

18 ➤ 18. ETS is present in

(a) Stroma (b) Matrix of mitochondria (c) Inner membrane of mitochondria (d) Outer membrane of mitochondria

19 ➤ 19. Match the column:

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A. NADH dehydrogenase – 1. Complex IV

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B. Cytochrome bc1 – 2. Complex III

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C. Cytochrome aa3 – 3. Complex I

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D. ATP synthase – 4. Complex V

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(a) A–1, B–2, C–3, D–4 (b) A–3, B–2, C–1, D–4 (c) A–4, B–1, C–3, D–2 (d) A–1, B–4, C–2, D–3

20 ➤ 20. Ubiquinone transfer its electron to

(a) Complex II (b) Complex I (c) Cytochrome c (d) Matrix

21 ➤ 21. Which of the following is correct about cytochrome?

(a) Small protein attaches to the outer surface of inner membrane of mitochondria. (b) Act as mobile carrier. (c) Transfers electron between complex III and IV. (d) All the above

22 ➤ 22. 1 molecule of NADH gives rise to ________ molecules of ATP, while 1 molecule of FADH2 gives ________ molecule of ATP

(a) 3, 2 (b) 2, 3 (c) 2, 2 (d) 3, 3

23 ➤ 23. O2 acts as

(a) Terminal hydrogen acceptor (b) Terminal electron acceptor (c) Both (a) and (b) (d) None of these

24 ➤ 24. Which type of phosphorylation occurs in mitochondria?

(a) Oxidative phosphorylation (b) Substrate level phosphorylation (c) Photophosphorylation (d) Both (a) and (b)

25 ➤ 25. When 12H+ pass through F0-F1 particle, how many ATPs are produced?

(a) 6 ATP (b) 4 ATP (c) 8 ATP (d) 10 ATP

26 ➤ 26. Identify A, B, C and D in the given figure.

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(a) A–Outer side, B–Inner mitochondrial membrane, C–Inner membrane part, D–ATP (b) A–Inner membrane part, B–Outer side, C–Inner mitochondrial membrane, D–ATP (c) A–ATP, B–Inner membrane part, C–Outer side, D–Inner mitochondria membrane (d) A–Inner mitochondrial membrane, B–ATP, C–Outer side, D–Inner membrane part

27 ➤ 27. To form a respiratory balance sheet, the calculations can be made on certain assumptions like

(a) There is a sequential pathway functioning like glycolysis, TCA cycle and ETS following one after another. (b) NADH formed in glycolysis is transferred to mitochondria and undergoes oxidative phosphorylation. (c) None of the intermediates in the pathway are utilized to synthesize any other compound and glucose is being respired no other alternative substrate are entering in the pathway at any of the intermediary stages. (d) All the above

28 ➤ 28. How many molecules of ATP are produce by oxidation of 1 molecule of glucose?

(a) 30 (b) 36 (c) 4 (d) 40

29 ➤ 29. Which of the following is incorrect about fermentation?

(a) It accounts for the partial breakdown of glucose. (b) Net gain is only 2 ATP. (c) The NADH to NAD+ formation reaction is vigorous. (d) It occurs in cytoplasm.

30 ➤ 30. Respiratory pathway is best defined as

(a) Catabolic pathway (b) Anabolic pathway (c) Amphibolic pathway (d) None of these

31 ➤ 31. Glycerol enters the respiratory pathway at

(a) Glu-6‒phosphate (b) PGA (c) PGAL (d) PEP

32 ➤ 32. Amino acid enters in the respiratory pathway at

(a) Kreb’s cycle (b) Pyruvate (c) Acetyl CoA (d) Any of these

33 ➤ 33. Fatty acid for entry into Kreb’s cycle is degraded to

(a) Pyruvate (b) Citric acid (c) Acetyl-CoA (d) PGA

34 ➤ 34. RQ for tripalmitin is

(a) 0.8 (b) 0.7 (c) 0.9 (d) 0.5

35 ➤ 35. RQ for protein is

(a) 0.8 (b) 0.7 (c) 0.9 (d) 0.5

36 ➤ 36. RQ for carbohydrate is

(a) 0.7 (b) 0.9 (c) 1 (d) 0.4

37 ➤ 37. Conversion of pyruvic acid into ethyl alcohol is facilitated by

(a) Carboxylase (b) Dehydrogenase (c) Decarboxylase and dehydrogenase (d) Phosphatase

38 ➤ 38. Fermentation is represented by the equation

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A) B) C) D)

39 ➤ 39. Anaerobic respiration takes place in the

(a) Mitochondria (b) Cytoplasm (c) Lysosomes (d) ER

40 ➤ 40. What is the total gain of energy during anaerobic respiration?

(a) One molecule of ATP (b) Two molecules of ATP (c) Four molecules of ATP (d) Eight molecules of ATP

41 ➤ 41. Cyanide resistant pathway is

(a) Anaerobic respiration (b) Aerobic respiration (c) Both (a) and (b) (d) None of these

42 ➤ 42. Energy accumulating in ATP is

(a) Disulphide bond (b) Hydrogen bonds (c) High energy phosphate bond (d) Ester bond

43 ➤ 43. In plants, respiration takes place

(a) Only in leaves during night (b) Only in leaves during day (c) In all living cells (d) None of these

44 ➤ 44. In both aerobic and anaerobic respiration which same product is formed?

(a) Lactic acid (b) Pyruvic acid (c) Citric acid (d) Organic acid

45 ➤ 45. Which of the following is the reverse of photosynthesis?

(a) Respiration (b) Protein synthesis (c) Fat synthesis (d) All of these

46 ➤ 46. The process of phosphorylation takes place in

(a) Glycolysis (b) Kreb’s cycle (c) HMP pathway (d) All of these

47 ➤ 47. Match the given below organelles with their function:

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A. Kreb’s cycle – 1. Stalked particles of mitochondria

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B. Photorespiration – 2. Cytoplasm

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C. Oxidative phosphorylation – 3. Peroxisomes

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D. Glycolysis – 4. Inner surface of membrane of mitochondria

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(a) A‒2, B‒3, C‒4, D‒1 (b) A‒1, B‒2, C‒3, D‒4 (c) A‒4, B‒3, C‒1, D‒2 (d) A‒3, B‒2, C‒4, D‒1

48 ➤ 48. Match the name of scientist with his work:

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A. PPP (Pentose Phosphate Pathway) – 1. Kuhne

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B. Demonstration of fermentation – 2. Kreb’s

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C. TCA cycle – 3. Warburg‒Dickens

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D. Glycolysis – 4. Embden Mayerhof Parnas

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(a) A‒1, B‒2, C‒3, D‒4 (b) A‒2, B‒4, C‒3, D‒1 (c) A‒1, B‒2, C‒4, D‒3 (d) A‒3, B‒1, C‒2, D‒4

49 ➤ 49. Match the correct answers with the type of respiration and respiratory substrates:

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A. Respiration – 1. Proteins

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B. Floating respiration – 2. Starch

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C. Cytoplasmic respiration – 3. Carbohydrates

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D. Protoplasmic respiration – 4. Lactose

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(a) A‒3, B‒2, C‒1, D‒4 (b) A‒2, B‒3, C‒4, D‒1 (c) A‒1, B‒2, C‒3, D‒4 (d) A‒2, B‒4, C‒1, D‒3

50 ➤ 50. The energy yielded as a result of total oxidation of one glucose molecule during cellular respiration is to convert

(a) 34 molecules of ADP into 34 molecules of ATP (b) 30 molecules of ADP into 30 molecules of ATP (c) 36 molecules of ADP into 36 molecules of ATP (d) 32 molecules of ADP into 32 molecules of ATP

51 ➤ 51. The connecting link among glycolysis, Kreb’s cycle and beta-oxidation of fatty acid is

(a) Pyruvic acid (b) Acetyl-CoA (c) Acetaldehyde (d) Citric acid

52 ➤ 52. Which of the following is the source of respiration?

(a) Stored food (b) RNA (c) DNA (d) ATP

53 ➤ 53. From the substrate level, how many phosphorylation ATP are produced?

(a) 2 (b) 6 (c) 10 (d) 8

54 ➤ 54. Select the incorrect statement:

(a) Plants have no special system for breathing or gaseous exchange. (b) Acetyl-CoA enter in TCA cycle running in matrix of mitochondria. (c) The RQ depends upon the type of respirarory substance used during respiration. (d) In fermentation, the complete oxidation of glucose occur in some bacteria.

55 ➤ 55. The aerobic respiration yields

(a) 8NADH2, 2FADH2, 2ATP (b) 10NADH2, 2FADH2, 38ATP (c) 12NADH2, 30ATP, H2O (d) 10NADH2, 2FADH2, 2GTP, 2ATP

56 ➤ 56. How many ATP are used/required in glycolysis or for the complete phosphorylation of a glucose molecule?

(a) 4 (b) 2 (c) 6 (d) 8

57 ➤ 57. Identify A to E in the given figure.

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(a) A–Phosphoenol Pyruvic acid, B–Lactic acid, C–3-Phosphoglyceric acid, D–Ethanol + CO2, E–Glyceraldehyde 3-Phosphate (b) A–Glyceraldehyde 3-Phosphate, B–3-Phosphoglyceric acid, C–Phosphoenol Pyruvic acid, D–Ethanol + CO2, E–Lactic acid (c) A–Lactic acid, B–Ethanol + CO2, C–Glyceraldehyde 3-Phosphate, D–Phosphoenol Pyruvic acid, E–3-Phosphoglyceric acid (d) A–3-Phosphoglyceric acid, B–Phosphoenol Pyruvic acid, C–Lactic acid, D–Glyceraldehyde 3-Phosphate, E–Ethanol + CO2

58 ➤ 58. Isomerization takes place in

(a) Glycolysis (b) Kreb’s cycle (c) Oxidative phosphorylation (d) None of these

59 ➤ 59. In cellular respiration, O2 is used as a final receptor of

(a) ATP and NADH (b) H and e- (c) Fe (d) Cytochrome

60 ➤ 60. The first stage in respiration is

(a) Aerobic oxidation of pyruvic acid (b) Liberation of CO2 (c) Glycolysis (d) Electron transport system

61 ➤ 61. Besides the net gain of 2 ATP molecules in glycolysis which other molecules are simultaneously formed?

(a) FADH2 (b) NADPH2 (c) NADH2 (d) FAMH2

62 ➤ 62. The total ATP production during EMP pathway is

(a) 24 ATP molecules (b) 8 ATP molecules (c) 38 ATP molecules (d) 6 ATP molecules

63 ➤ 63. Glycolysis takes place in

(a) Mitochondria (b) Cytoplasm (c) Both mitochondria and cytoplasm (d) Vacuole

64 ➤ 64. Pyruvate (pyruvic acid) dehydrogenase is used in converting

(a) Pyruvate to glucose (b) Glucose to pyruvate (c) Pyruvic acid to lactic acid (d) Pyruvate (pyruvic acid) to acetyl-CoA

65 ➤ 65. The number of molecules of pyruvic acid formed from one molecule of glucose at the end of glycolysis is

(a) 1 (b) 2 (c) 3 (d) 4

66 ➤ 66. What is the other name of glycolysis?

(a) EMP pathway (b) TCA pathway (c) HMS pathway (d) None of these

67 ➤ 67. The common phase between aerobic and anaerobic respiration is called

(a) Tricarboxylic acid cycle (b) Oxidative phosphorylation (c) Embden, Meyerhoff, Parnas cycle (d) Kreb’s cycle

68 ➤ 68. The oxidation of one NADH2 yields

(a) 18 ATP (b) 6 ATP (c) 3 ATP (d) 2 ATP

69 ➤ 69. The end product of glycolysis is

(a) acetyl-CoA (b) Citric acid (c) Pyruvic acid (d) Fumaric acid

70 ➤ 70. The first step of glycolysis is:

(a) Breakdown of glucose (b) Phosphorylation of glucose (c) Conversion of glucose into fructose (d) Dehydrogenation of glucose

71 ➤ 71. Which of the following is the correct sequence of glycolysis?

(a) G 6–P → PEP → 3–PGAL → 3–PGA (b) G 6–P → 3–PGAL → 3–PGA → PEP (c) G 6–P → PEP → 3–PGA → 3–PGAL (d) G 6–P → 3–PGA → 3–PGAL → PEP

72 ➤ 72. Which intermediate compound is involved in the synthesis of amino acids?

(a) Malic acid (b) Citric acid (c) α-ketoglutaric acid (d) Isocitric acid

73 ➤ 73. In ATP molecule, the energy is stored in

(a) Chemical bonds (b) Hydrogen bonds (c) Carbon bonds (d) Pyrophosphate bonds

74 ➤ 74. What indicates A to F in the given figure?

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(a) A–Oxaloacetic acid (4C), B–Malic acid (4C), C–Succinic acid (4C), D–Acetyl coenzyme A (2C), E–Citric acid (6C), F–α-ketoglutaric acid (b) A–α-ketoglutaric acid, B–Citric acid (6C), C:Oxaloacetic acid (4C), D–Succinic acid (4C), E–Acetyl coenzyme A (2C), F–Malic acid (4C) (c) A–Acetyl coenzyme A (2C), B–Oxaloacetic acid (4C), C–Citric acid (6C), D–Malic acid (4C), E–α-ketoglutaric acid, F–Succinic acid (4C) (d) A–Succinic acid (4C), B–Acetyl coenzyme A (2C), C–Malic acid, D–α-ketoglutaric acid, E–Citric acid (6C), F–Oxaloacetic acid (4C)

75 ➤ 75. Kreb’s cycle is termed as the aerobic phase of respiration because

(a) It consumes oxygen (b) Oxygen acts as a catalyst (c) Aerobic conditions are essential for the continued operation of electron transport system (d) All the above

76 ➤ 76. Between which of the following stages, GTP is formed by substrate level phosphorylation?

(a) Succinate to fumarate (b) Ketoglutarate to succinate (c) Oxalosuccinate to glutarate (d) Fumarate to malate

77 ➤ 77. How many molecules of ATP are produced per molecule of FADH2 oxidized?

(a) One (b) Two (c) Three (d) Four

78 ➤ 78. A molecule of ATP is formed when electron passes from

(a) Cyt c to Cyt a (b) Cyt a to Cyt c (c) Cyt b to Cyt c1 (d) Cyt c to Cyt b

79 ➤ 79. Kreb’s cycle is also known as

(a) Glyoxylate cycle (b) EMP pathway (c) Citric acid cycle (d) Glycolate cycle

80 ➤ 80. The link between glycolysis and Kreb’s cycle is

(a) Citric acid (b) Acetyl-CoA (c) Succinic acid (d) Oxaloacetic acid

81 ➤ 81. The reaction of Kreb’s cycle take place

(a) In cytoplasm (b) In endoplasmic reticulum (c) In matrix of mitochondria (d) On the surface of mitochondrion

82 ➤ 82. Oxidative phosphorylation occurs in the

(a) Outer membrane of mitochondria (b) Inner membrane of mitochondria (c) Stroma of chloroplast (d) Grana of chloroplast

83 ➤ 83. Which of the following is the correct sequence in Kreb’s cycle?

(a) Isocitric acid → Oxalosuccinic acid → α–ketoglutaric acid (b) Oxalosuccinic acid → Isocitric acid → α–ketoglutaric acid (c) α–ketoglutaric acid → Isocitric acid → Oxalosuccinic acid (d) Isocitric acid → α–ketoglutaric acid → Oxalosuccinic acid

84 ➤ 84. In how many steps, CO2 is released in aerobic respiration of pyruvic acid?

(a) One (b) Six (c) Three (d) Twelve

85 ➤ 85. The formation of acetyl coenzyme–A from pyruvic acid is the result of its

(a) Reduction (b) Dehydration (c) Dephosphorylation (d) Oxidative decarboxylation

86 ➤ 86. Oxidative phosphorylation and photophosphorylation both require the electron carrier

(a) Cytochrome (b) Oxygen (c) Carbon dioxide (d) Water

87 ➤ 87. In an electron transport chain, in terminal oxidation, the cytochrome which donates electrons to O2 is

(a) Cytochrome b (b) Cytochrome c (c) Cytochrome a3 (d) Cytochrome a

88 ➤ 88. The last or terminal cytochrome in respiratory chain is

(a) Cyt b (b) Cyt a3 (c) Cyt a (d) Cyt c

89 ➤ 89. The correct sequence of electron acceptor in ATP synthesis is

(a) Cyt a a3 b c (b) Cyt b c a a3 (c) Cyt b c a3 a (d) Cyt c b a a3

90 ➤ 90. In Kreb’s cycle, the FAD precipitates as electron acceptor during the conversion of

(a) Succinyl CoA to succinic acid (b) α-ketoglutarate to succinyl CoA (c) Fumaric acid to maleic acid (d) Succinic acid to fumaric acid

91 ➤ 91. RQ for glucose is

(a) 1 (b) 0.5 (c) 2 (d) 0.05

92 ➤ 92. With which of the following fatty acid the value of RQ is one?

(a) Acetic acid (b) Oleic acid (c) Stearic acid (d) Palmitic acid

93 ➤ 93. RQ is defined as

(a) Ratio between CO2 liberated and O2 taken (b) Volume of oxygen taken (c) Volume of carbon dioxide liberated (d) Ratio between oxygen taken and fat utilized

94 ➤ 94. RQ of fatty substances is generally

(a) Unity (b) Less than one (c) Greater than one (d) Zero

95 ➤ 95. RQ of sprouting potato tubers will be

(a) 1 (b) < 1 (c) > 1 (d) 0

96 ➤ 96. RQ in anaerobic respiration is

(a) 0 (b) ∝ (c) 1 (d) > 1

97 ➤ 97. What do alphabets A to E indicates in following figures?

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(a) A–Glucose 6-phosphate, B–Fatty acids and glycerol, C–Carbohydrate, D–Amino acid,E–Fructose 1, 6-bisphosphate (b) A–Fatty acids and glycerol, B–Glucose 6-phosphate, C–Amino acid, D–Carbohydrates,E–Fructose 1, 6-bisphosphate (c) A–Fructose 1, 6-bisphosphate, B–Amino acid, C–Glucose 6-phosphate, D–Fatty acids and glycerol, E–Carbohydrate (d) A–Amino acid, B–Carbohydrate, C–Glucose 6-phosphate, D–Fructose 1, 6-bisphosphate, E–Fatty acids and glycerol

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