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ChapterBiochemistry Enzymes

Enzyme Inhibition: Competitive and Non-competitive

Free notes, MCQs, tables & flowcharts for FMGE Biochemistry

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Sample Questions

1

Acetazolamide is given to a patient with angle closure glaucoma. It is a reversible competitive inhibitor of carbonic anhydrase enzyme. Which of the following should be the effect of this drug?

ANo change in Vmax

BIncrease in both Km and Vmax

CDecrease in Km

DDecrease in Vmax

2

Identify the type of inhibition exhibited by A?

ACompetitive inhibition

BUncompetitive inhibition

CMixed inhibition

DNon competitive inhibition

EAllosteric inhibition

3

Which of the following is an example of allosteric inhibition?

ADecreased synthesis of glucokinase by glucagon

BInactivation of glycogen synthase by phosphorylation

CInhibition of PFK-1 by citrate

DNone of the options

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