객관식
2. If acetylcholinesterase became mutated and nonfunctional, which of the following would most likely occur in the synaptic cleft?
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7. Energy and Metabolism
Enzyme Inhibition
객관식
The binding of an allosteric inhibitor to an enzyme causes the rate of product formation by the enzyme to decrease. Which of the following best explains why this decrease occurs?
A
The allosteric inhibitor binds to the active site, preventing the substrate from binding.
B
The allosteric inhibitor causes free energy change of the reaction to increase.
C
The allosteric inhibitor lowers the temperature of the active site.
D
The allosteric inhibitor binds to the substrate and prevents it from binding at the active site.
E
The allosteric inhibitor causes a structural change in the enzyme that prevents the substrate from binding at the active site.
검증된 단계별 안내1
Understand the concept of allosteric inhibition: Allosteric inhibitors bind to a site other than the active site on an enzyme, causing a change in the enzyme's shape or conformation.
Recognize the effect of allosteric inhibition: This structural change in the enzyme can alter the active site, making it less accessible or unable to bind the substrate effectively.
Consider the options provided: Evaluate each statement to determine which one accurately describes the mechanism of allosteric inhibition.
Eliminate incorrect options: The options suggesting binding at the active site or changes in temperature or free energy are not typical effects of allosteric inhibitors.
Identify the correct explanation: The correct answer is that the allosteric inhibitor causes a structural change in the enzyme that prevents the substrate from binding at the active site.
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