Indicate whether each of the following describes a competitive or a noncompetitive inhibitor.
a. The structure of the inhibitor is similar to that of the substrate.

Question

Indicate whether each of the following describes a competitive or a noncompetitive inhibitor.

a. The structure of the inhibitor is similar to that of the substrate.

Accepted Answer

All right. Hello everyone. So this question is asking us to indicate the type of inhibitor inhibitor. Excuse me described in the following statement and the statement reads a molecule that closely resembles the shape and charge distribution of the substrate is added to the enzymatic reaction. Option, aces allosteric inhibitor. Option B says competitive inhibitor C says noncompetitive inhibitor and D says uncompetitive inhibitor. So for a question like this, I want to first go ahead and discuss the characteristics of each inhibitor described in the answer choices. So let's start with the allosteric inhibitor which is option A. Now, first of all recall that the allosteric inhibitor is characterized by inhibiting the enzyme by changing the enzymes shape and therefore affecting its ability to bind to the substrate. Now, a competitive inhibitor is one that competes with the substrate for binding. So it reduces the amount of substrate binding up to a point. And the reason why the competitive inhibitor is able to compete with the substrate for binding is because it resembles the substrate and therefore is able to bind to the active site up. Next, we have the noncompetitive inhibitor and the noncompetitive inhibitor is noteworthy in that it does not bind to the active site. The noncompetitive inhibitor does not bind to the active site and it does not resemble the substrate either. And another quick note because I forgot to mention this. When talking about the allosteric inhibitor, the allosteric inhibitor also does not bind to the active site. So just keep that in mind. Now, last but not least we have the uncompetitive inhibitor which only binds to the enzyme substrate complex, not to the free enzyme and therefore not to the active side. So now based on the information provided about the molecule in that it resembles the shape and charge distribution of the substrate. This molecule must be a competitive inhibitor because it's able to compete with the substrate for binding to the active site. Meaning option B is going to be correct here and there he had. So with that being said, thank you so very much for watching and I hope you found this helpful.

Indicate whether each of the following describes a competitive or a noncompetitive inhibitor.
a. The structure of the inhibitor is similar to that of the substrate.

Verified video answer for a similar problem:

Key Concepts

Competitive Inhibition

Noncompetitive Inhibition

Enzyme-Substrate Complex

Indicate whether each of the following describes a competitive or a noncompetitive inhibitor.a. The structure of the inhibitor is similar to that of the substrate.

Verified video answer for a similar problem:

Key Concepts

Competitive Inhibition

Noncompetitive Inhibition

Enzyme-Substrate Complex

Indicate whether each of the following describes a competitive or a noncompetitive inhibitor.
a. The structure of the inhibitor is similar to that of the substrate.