Biochemistry - Mock Test 104

Question 1031

Which of the following reactions is unique to gluconeogenesis?

A) Lactate Pyruvate B) Phosphoenol pyruvate pyruvate C) Oxaloacetate phosphoenol pyruvate D) Glucose-6-phosphate Fructose-6-phosphate

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Question 1032

Which one of the following compounds cannot give rise to the net synthesis of Glucose?

A) Lactate B) Glycerol C) α-ketoglutarate D) Acetyl CoA

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Question 1033

The reaction catalysed by phosphofructokinase?

A) Is activated by high concentrations of ATP and citrate B) Uses fruitose-1-phosphate as substrate C) Is the rate-limiting reaction of the glycolytic pathway D) Is inhibited by fructose 2, 6-bisphosphate

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Question 1034

An uncoupler of oxidative phosphorylation such as dinitrophenol?

A) Inhibits electron transport and ATP synthesis B) Allow electron transport to proceed without ATP synthesis C) Inhibits electron transport without impairment of ATP synthesis D) Specially inhibits cytochrome b

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Question 1035

Sufficient energy required to produce 3 ATP from 3 ADP and 3 pi is?

A) –21,900 cal B) 29,900 cal C) 31,900 cal D) 39,900 cal

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Question 1036

The transport of a pair of electrons from NADH to O2 via the electron transport chain produces?

A) –52,580 cal B) –50,580 cal C) 21,900 cal D) +52,580 cal

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Question 1037

The standard free energy of hydrolysis of terminal phosphate group of ATP is?

A) –7,300 cal/mol B) –8,300 cal/mol C) 10,000 cal/mol D) +7,300 cal/mol

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Question 1038

The more positive the E0, the greater the tendency of the oxidant member of that pair to?

A) Lose electrons B) Gain electrons C) Lose (or) gain electrons D) Lose and gain electrons

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Question 1039

Electron transport and phosphorylation can be uncoupled by compounds that increase the permeability of the inner mitochondrial membrane to?

A) Electrons B) Protons C) Uncouplers D) All of these

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Question 1040

For conversion of oxaloacetate to phosphoenol pyruvate, high energy molecule is required in the form of?

A) GTP only B) ITP only C) GTP (or) ITP D) None of these

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