71. The amount of energy given by one ATP molecule is

A 67 K cal
B 6.7 K cal
C 7.6 K cal
D 75 K cal
Answer :   7.6 K cal
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72. The num ber of ATP molecules produced by electron transport system from kreb;s cycle intermedaites in a single turn is

A 11
B 14
C 12
D 16
Answer :   11
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73. Link between glycolyis & TCA cycle is

A Pyruvic acid
B Acetyl CoA
C Citric acid
D None of the above
Answer :   Acetyl CoA
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74. Most enzymes consist of two parts these are

A Enzyme & substrate
B Enzyme & coenzyme
C Apoenzyme and enzyme
D Apoenzyme & prosthetic group
Answer :   Apoenzyme & prosthetic group
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75. Total yield in one Kerb cycle

A 3 FADH2, 2 NADH2, 1 ATP
B 2 FADH2, 2NADH2, 2 ATP
C 2 NADH2, 1 FADH2, 2 ATP
D 3 NADH2, 1 FADH2, 1 ATP
Answer :   3 NADH2, 1 FADH2, 1 ATP
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76. The enzyme which converts glucose to glucose-66 phosphate

A Phosphorylase
B Gluco-phosphorylase
C Hexokinase
D Phospho glucomutase
Answer :   Hexokinase
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77. Photosynthetic unit is

A Glyoxysome
B Spherosome
C Microsome
D Quantasome
Answer :   Quantasome
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78. Cut surfaces of fruits and vegetables often become dark because

A Dirty knie makes it dark
B Oxidation of tannic acid in the presence of trace of iron from the knife makes it dark
C Dust of the air makes it dark
D None of the above
Answer :   Oxidation of tannic acid in the presence of trace of iron from the knife makes it dark
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79. Oxidation of one molecule of glucose in aerobic respiration result s in the formation of

A 36 ATP molecules
B 38 ATP molecules
C 3 ATP molecules
D 15 ATP molecules
Answer :   38 ATP molecules
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80. Who conined the term enzyme

A Pasteur
B Buchner
C Kuhne
D Sumner
Answer :   Kuhne
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