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Medical Science Mcqs 5254 MCQs [All-Courses]

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

All Topics  5254

Enzymes involved in degradation of epinephrine_____________?
A Cholinesterase
B Anticholinesterases
C Catechol 0-transferase
D Oxidases
Correct Answer: Catechol 0-transferase
Muscle glycogen cannot contribute directly to blood glucose level because___________?
A Muscle lacks glucose 6 phosphatase
B Muscle lacks phospho gluco isomerase
C Absence of glucokinase
D Muscle does not contain glycogen phosphorylase
Correct Answer: Muscle lacks glucose 6 phosphatase
The main site of fluoride inhibition in the Embden Meyerhof pathway of acid____________?
A ATPase
B Enolase
C Pyruvate Kinase
D Fructose 6 phosphatase
Correct Answer: Enolase
Enzymes help by____________?
A Lowering the activation energy
B Increasing the substrate concentration
C Decreasing the surface tension
D Increasing the activation energy
Correct Answer: Lowering the activation energy
The activity of the following enzyme is affected by biotin deficiency____________?
A Transketolase
B Dehydrogenase
C Oxidase
D Carboxylase
Correct Answer: Carboxylase
The deficiency of thiamine can be identified by measuring the red cell______________?
A Transketaolase
B Transaldolase
C Alpha ketoglutarate dehydrogenase
D Pyruvate dehydrogenase
Correct Answer: Transketaolase
Competitive enzyme inhibition will cause_____________?
A Decrease of km and increase of Vmax
B increase of km and increase of Vmax
C Decrease of km and decrease of Vmax
D Increase of km and Unchanged of Vmax
Correct Answer: Increase of km and Unchanged of Vmax
Which of the following is correct of the pyruvate dehydrogenase enzyme complex ?
A It is present in cytoplasm
B Catalyzes the conversion of pyruvate to oxaloacetate
C Requires TPP as cofactor
D Catalyzes a reversible reaction
Correct Answer: Requires TPP as cofactor
Dehydrogenase used as coenzymes all of the following, except________________?
A FMN
B FAD
C NADP+
D Ferro protoporphyrin
Correct Answer: Ferro protoporphyrin
Benzidine test is positive with the enzyme______________?
A Cytochrome oxidase
B Dehydrogenase
C Hydrolase
D Peroxidase
Correct Answer: Peroxidase
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