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Biochemistry

Competitive enzyme inhibition will cause_____________?

August 3, 2021July 15, 2019 by admin
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

Categories Biochemistry, Enzymes, Medical Mcqs

Which of the following is correct of the pyruvate dehydrogenase enzyme complex ?

August 3, 2021July 15, 2019 by admin
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

Categories Biochemistry, Enzymes, Medical Mcqs

Dehydrogenase used as coenzymes all of the following, except________________?

August 3, 2021July 15, 2019 by admin
Dehydrogenase used as coenzymes all of the following, except________________?

A. FMN
B. FAD
C. NADP+
D. Ferro protoporphyrin

Categories Biochemistry, Enzymes, Medical Mcqs

Benzidine test is positive with the enzyme______________?

August 3, 2021July 15, 2019 by admin
Benzidine test is positive with the enzyme______________?

A. Cytochrome oxidase
B. Dehydrogenase
C. Hydrolase
D. Peroxidase

Categories Biochemistry, Enzymes, Medical Mcqs

Key glycolytic enzymes_____________?

August 3, 2021July 15, 2019 by admin
Key glycolytic enzymes_____________?

A. Phosphofructokinase
B. Hexokinase
C. Pyruvate kinase
D. Glucose 1,6 diphosphatase

Categories Biochemistry, Enzymes, Medical Mcqs

Multiienzyme complex in human_______________?

August 3, 2021July 15, 2019 by admin
Multiienzyme complex in human_______________?

A. Fatty acid synthetase
B. Malonyl CoA carboxylase
C. Carbomoyl Phosphate synthetase
D. Adenosine phospho ribosyl transferase

Categories Biochemistry, Enzymes, Medical Mcqs

Which of the following is NOT a characteristic feature of allosteric enzymes ?

August 3, 2021July 15, 2019 by admin
Which of the following is NOT a characteristic feature of allosteric enzymes ?

A. They are multienzyme complex
B. Follow Michaelis-Menton Kinetics
C. Presence of Modulator site
D. Give sigmoid shaped curve

Categories Biochemistry, Enzymes, Medical Mcqs

A example of a preventive antioxidant is_______________?

August 3, 2021July 15, 2019 by admin
A example of a preventive antioxidant is_______________?

A. Catalase
B. Tocopherol
C. Superoxide dismutase
D. Urate

Categories Biochemistry, Enzymes, Medical Mcqs

LDH has following number oflsoenzymes________________?

August 3, 2021July 15, 2019 by admin
LDH has following number oflsoenzymes________________?

A. 5
B. 3
C. 11
D. 2

Categories Biochemistry, Enzymes, Medical Mcqs

One of the earliest symptoms of Vit. A deficiency is________________?

August 3, 2021July 15, 2019 by admin
One of the earliest symptoms of Vit. A deficiency is________________?

A. Nyctalopia
B. Xerophthalmia
C. Bitot’s spot
D. Keratomalacia

Categories Biochemistry, Enzymes, Medical Mcqs
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