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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