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.Management Sciences
Category: Enzymes
An enzyme that makes a double stranded DNA copy from a single stranded RNA template molecule is known as____________?
A. DNA polymerase
B. RNA polymerase
C. Reverse transcriptase
D. Phospho kinase
Lactate dehydrogenase is____________?
A. Isozyme
B. Coenzyme
C. Antienzyme
D. Zymogen
The most common enzyme deficiency in man is___________?
A. Glucose 6 phosphate dehydrogenase
B. Glucose 6 phosphatase
C. Hexokinase
D. Glucose 1,6 diphosphatase
In mycocarrdial infarction the first enzyme to rise____________?
A. CPK
B. LDH
C. SGOT
D. Amylase
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
When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?
A. Cofactor
B. Coenzyme
C. Apoenzyme
D. Holoenzyme
Enzymes help by____________?
A. Lowering the activation energy
B. Increasing the substrate concentration
C. Decreasing the surface tension
D. Increasing the activation energy
Dehydrogenase used as coenzymes all of the following, except________________?
A. FMN
B. FAD
C. NADP+
D. Ferro protoporphyrin
The deficiency of thiamine can be identified by measuring the red cell______________?
A. Transketaolase
B. Transaldolase
C. Alpha ketoglutarate dehydrogenase
D. Pyruvate dehydrogenase
Biotin is required for the activity of_____________?
A. Pyruvate carboxylase
B. Lactate dehydrogenase
C. Succinate thiokinase
D. Phosphohexose isomerase
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