Enzymes - Mock Test 53

Question 521

In the glycolytic pathway, enolpyruvate is converted to ketopyruvate by?

A) Pyruvate kinase B) Phosphoenolpyruvate C) Pyruvate dehydrogenase D) Spontaneously

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Question 522

In glycolytic pathway, iodacetate inhibits the activity of the enzyme?

A) Phosphotriose isomerase B) Glyceraldehyde-3-phosphate dehydrogenase C) Pyruvate kinase D) Phosphofructokinase

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Question 523

The enzyme of the glycolic pathway, sensitive to inhibiton by fluoride ions is?

A) Hexokinase B) Aldolase C) Enolase D) Pyruvate kinase

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Question 524

In the figures shown below, fructose 1,6- biphosphate is located at point?

A) A B) B C) C D) D

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Question 525

In the reaction below, Nu TP stands for NuTP + glucose → Glucose 6–Phosphate + NuDP?

A) ATP B) CTP C) GTP D) UTP

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Question 526

At low blood glucose concentration, brain but not liver will take up glucose. It is due to the?

A) Low Km of hexokinase B) Low Km of glucokinase C) Specificity of glucokinase D) Blood brain barrier

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Question 527

The harmone acting directly on intestinal mucosa and stimulating glucose absorption is?

A) Insulin B) Glucagon C) Thyroxine D) Vasopressin

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Question 528

Glucose absorption is promoted by?

A) Vitamin A B) Thiamin C) Vitamin C D) Vitamin K

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Question 529

In the intestine the rate of absorption is highest for?

A) Glucose and galactose B) Fructose and mannose C) Fructose and pentose D) Mannose and pentose

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Question 530

The sugar absorbed by fac i l itated diffusion and requiring Na independent transporter is?

A) Glucose B) Fructose C) Galactose D) Ribose

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