Inhibitors can operate by
I.decreasing the concentration of a substrate.
II.binding at the enzyme active site, blocking reaction with substrate.
III.inducing a change in the protein structure by binding at a remote site.
IV.increasing the activation energy for a reaction.

Question

Quizplus · Accepted Answer

Option I is incorrect because a decrease in substrate concentration would lead to a decrease in the rate of reaction rather than inhibition.

Option II is correct because inhibitors can bind to the active site of the enzyme, preventing substrate binding and reaction.

Option III is correct because inhibitors can cause a protein to undergo a conformational change, making the enzyme less effective in catalyzing a reaction.

Option IV is incorrect because an increase in activation energy would make it harder for the enzyme-substrate complex to form and catalyze the reaction, but it would not inhibit the enzyme from functioning altogether.

Inhibitors Can Operate by