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Medical Science Mcqs 5254 MCQs [All-Courses]

Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

The most common enzyme deficiency in man is___________?

A Glucose 6 phosphate dehydrogenase

B Glucose 6 phosphatase

C Hexokinase

D Glucose 1,6 diphosphatase

Review Detailed Answer

Correct Answer: Glucose 6 phosphate dehydrogenase

Enzymes concerned with the citric acid cycle are found in______________?

A Nucleus

B Mitochondria

C Ribosomes

D Non-particulate cytoplasm

Review Detailed Answer

Correct Answer: Mitochondria

Serum alkaline phosphatase level increase in_______________?

A Hypothyroidism

B Carcinoma of prostate

C Hyperparathyroidism

D Myocardial infarction

Review Detailed Answer

Correct Answer: Hyperparathyroidism

The enzyme that splits hydrogen peroxide into water and oxygen is_____________?

A Cytochromes

B Cytochrome P 450

C Super oxide dismutase

D Catalase

Review Detailed Answer

Correct Answer: Catalase

Enzyme that catalyses the transfer of a molecule group from one molecule to another is_____________?

A Oxidases

B Peptidases

C Transferases

D LIpases

Review Detailed Answer

Correct Answer: Transferases

The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________?

A Lecithin cholesterol acyl transferase (LCAT)

B Pyrophospho mevalonate decarboxylase

C HMG CoA reductase

D Phospho mevalonate kinase

Review Detailed Answer

Correct Answer: Lecithin cholesterol acyl transferase (LCAT)

Enzymes are classified according to_________________?

A Action on substrate

B Action of coenzymes

C Nature of the enzymes

D All of the above

Review Detailed Answer

Correct Answer: Action on substrate

Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?

A MM fraction

B MB fraction

C BB fraction

D Both MM and BB fraction

Review Detailed Answer

Correct Answer: MB fraction

A material that speeds up a chemical reaction without chemically becoming involved is called_____________?

A A solvent

B A base

C A catalyst

D Thermoplastic

Review Detailed Answer

Correct Answer: A catalyst

Km of an enzyme is_____________?

A Dissociation constant

B The normal physiological substrate concentration

C Substrate concentration at half maximal velocity

D Numerically identical for all isozymes that catalyses a given reaction

Review Detailed Answer

Correct Answer: Substrate concentration at half maximal velocity

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Medical Science Mcqs 5254 MCQs [All-Courses]

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All Topics 5254

The most common enzyme deficiency in man is___________?

Enzymes concerned with the citric acid cycle are found in______________?

Serum alkaline phosphatase level increase in_______________?

The enzyme that splits hydrogen peroxide into water and oxygen is_____________?

Enzyme that catalyses the transfer of a molecule group from one molecule to another is_____________?

The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________?

Enzymes are classified according to_________________?

Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?

A material that speeds up a chemical reaction without chemically becoming involved is called_____________?

Km of an enzyme is_____________?