Enzyme Diagnostic Applications Practice Questions

Question 1

Which of the following flipped pattern of LDH is seen in myocardial infarction?

Accepted Answer

LDH 1>2

Answer

LDH 5>4

Answer

LDH 3>4

Answer

LDH 2>1

Question 2

Level of which of the following is not elevated in heart disease

Accepted Answer

5-nucleotidase

Answer

SGOT

Answer

ALP

Answer

LDH

Question 3

Which of the following is NOT included in the Child-Pugh criteria for assessing liver disease severity?

Accepted Answer

ALT / AST

Answer

S. albumin

Answer

Serum Bilirubin

Answer

Ascites

Question 4

What is the most sensitive biochemical marker for a 7-day old myocardial infarction?

Accepted Answer

Troponin I/T

Answer

CPK MB

Answer

LDH

Answer

Myoglobin

Question 5

Enzyme that can be traced in semen sample of 8-10 weeks is:

Accepted Answer

Acid phosphatase test

Answer

CPK enzyme

Answer

LDH

Answer

ALP test

Question 6

Which enzyme is primarily evaluated for diagnosing myopathies?

Accepted Answer

Creatine kinase (CK)

Answer

Gamma-glutamyl transferase (GGT)

Answer

Lactic dehydrogenase (LDH)

Answer

Alanine aminotransferase (ALT)

Question 7

Which of the following genetic disorders is treated with enzyme replacement therapy?

Accepted Answer

Gaucher's disease

Answer

Krabbe's disease

Answer

Metachromatic leukodystrophy

Answer

Tay-Sachs disease

Question 8

Which statement is false about allosteric regulation?

Accepted Answer

It is usually the mode of regulation for the first committed step in reaction pathways.

Answer

Cellular response is faster with allosteric control than by controlling enzyme concentration in the cell.

Answer

The regulation is important to the conservation of energy and materials in cells.

Answer

Allosteric modulators bind non-covalently at sites other than the active site and induce conformational changes in the enzyme.

Question 9

Non-competitive inhibition is:

Accepted Answer

Any of the above

Answer

Reversible

Answer

Irreversible

Answer

None of the above

Question 10

Which of the following enzymes is a constituent of the HMP shunt?

Accepted Answer

G6P dehydrogenase

Answer

Glucose 6 Phosphatase

Answer

Hexokinase

Answer

Phosphorylase

Enzyme Diagnostic Applications — MCQs

Enzyme Diagnostic Applications — MCQs

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