Enzymes - Mock Test 21

Question 201

Coenzyme A contains the vitamin?

A) Riboflavin B) Pantothenic acid C) Pyridoxine D) Thiamine

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Question 202

Decarboxylation of α-keto acids requires?

A) Thiamine pyrophosphate, FAD, NAD+ B) Flavin mononucleotide C) NADP+ D) NAD+ only

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Question 203

A substrate for the enzyme aldolase is?

A) galactose-6-phosphate B) isocitric acid C) Glucose-1-phosphate D) Fructose 1, 6 diphosphate

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Question 204

The rate of most enzyme catalysed reactions changes with pH. As the pH increases, this rate?

A) reaches a minimum, then increases B) reaches a maximum, then decreases C) increases D) decreases

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Question 205

Isocitrate dehydrogenase can use __________ as a cofactor?

A) NAD+ only B) NADP+ only C) NAD+ or NADP+ D) FMN and FAD

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Question 206

Homogentisic oxidase is an?

A) Oxidase B) Monooxygenase C) Dioxygenase D) Anaerotic dehydrogenase

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Question 207

Pyruvate dehydrogenase is a/an?

A) Isomerase B) Lyase C) Ligase D) Oxido reductase

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Question 208

Which of the following is not having an apoenzyme and coenzyme?

A) Lactate dehydrogenase B) Succinate dehydrogenase C) Malate dehydrogenase D) Pepsin

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Question 209

Conversion of pepsinogen to pepsin is?

A) Intra molecular rearrangement B) Breaking of hydrogen bonds C) Covalent modification D) Polymerisation

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Question 210

Which of the following is known as bone forming enzyme?

A) Alkaline phosphatase B) Acid phosphatase C) Leucine aminopeptidase D) γ-glutamyl transpeptidase

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