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Enzymology practice questions
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Enzymology practice questions
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Enzymology practice questionsAn enzyme may be defined as a: - correct answer-Biological catalysts
The Michaelis-Menten Constant in the rate of conversion of substrate to product is
determined by: - correct answer-Substrate concentration and rate of dissociation of
enzyme-substrate complex
Isoenzyme - correct answer-The electrophoretic property is different for each isoenzyme
Isoenzymes are performed to improve - correct answer-specificity
The protein portion of an enzyme complex is called - correct answer-Apoenzyme
Lactate dehydrogenase, malate dehydrogenase, isocitrate dehydrogenase and
hydroxybutyrate dehydrogenase all... - correct answer-Catalyze oxidation-reduction
reactions
Amino transferase catalyze the - correct answer-Exchange of amino groups and keto groups
between alpha-amino and alpha keto acids
In a zero order reaction, there will be no further increase in velocity because - correct
answer-All enzyme is bound to substrate
As the temperature is increased from 25c to 37c in the AST reaction, the activity of the
reaction.. - correct answer-Almost doubles
A metal ion is sometimes necessary in an enzymatic reaction - correct answer-To act as an
activator of the enzyme
During enzymatic reactions, there can be inhibitors. The following is not a type of inhibitor -
correct answer-Irreversible
In kinetic or rate enzymatic methodologies, optical density decreases as - correct
answer-NADH is changed to NAD
AST is characteristically elevated in the disease of the - correct answer-Liver
Malate dehydrogenease is added to the AST reaction to catalyze the conversion of - correct
answer-Oxaloacetate to malate
The greatest activites of serum ALT and AST are seen in which of the following - correct
answer-Acute viral hepatitis
AST and ALT are both elevated in which of the following diseases - correct answer-Viral
Hepatitis
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