Mineral Metabolism - Mock Test 30

Question 291

The chemical inhibiting oxidative phosphorylation, Adependent on the transport of adenine nucleotides across the inner mitochondrial membrane is?

A) Oligomycin B) Atractyloside C) Dinitrophenol D) Pentachloropheno

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Question 292

An uncoupler of oxidative phosphorylation is?

A) Carboxin B) Atractyloside C) Amobarbital D) Dinitrocresol

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Question 293

The coupling of oxidation and phosphorylation in intact mitochondria?

A) Puromycin B) Oligomycin C) Streptomycin D) Gentamycin

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Question 294

Chemiosmotic theory for oxidative phosphorylation has been proposed by?

A) Chance and Williams B) Pauling and Corey C) S. Waugh D) P. Mitchell

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Question 295

Transfer of reducing equivalents from succinate dehydrogenase to coenzyme Q is specifically inhibited by?

A) Carboxin B) Oligomycin C) Piericidin A D) Rotenone

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Question 296

Activity of cytochrome oxidase is inhibited by?

A) Sulphite B) Sulphate C) Arsenite D) Cyanide

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Question 297

If the reducing equivalents enter from FAD in the respiratory chain, the phosphate.oxygen ration (P:O) is?

A) 2 B) 1 C) 3 D) 4

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Question 298

Reducing equivalents from succinate enter the mitochondrial respiratory chain at?

A) NAD B) Coenzyme Q C) FAD D) Cyt c

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Question 299

Reducing equivalents from pyruvate enter the mitochondrial respiratory chain at?

A) FMN B) NAD C) Coenzyme Q D) Cyt b

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Question 300

The redox carriers are grouped into respiratory chain complex?

A) In the inner mitochondrial membrane B) In mitochondiral matrix C) On the outer mitochondrial membrane D) On the inner surface of outer mitochondrial membrane

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