Which of the following is an example of a competitive inhibitor?

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Question: Which of the following is an example of a competitive inhibitor?

Options:

Correct Answer: A molecule that binds to the active site of an enzyme

Solution:

A competitive inhibitor is a molecule that binds to the active site of an enzyme, competing with the substrate for binding.

Which of the following is an example of a competitive inhibitor?

Which of the following is an example of a competitive inhibitor?

Step 1: Understand what an enzyme is. An enzyme is a protein that helps speed up chemical reactions in the body.
Step 2: Learn about the active site. The active site is the part of the enzyme where the substrate (the molecule the enzyme acts on) binds.
Step 3: Know what a substrate is. A substrate is the molecule that the enzyme works on to create a product.
Step 4: Define a competitive inhibitor. A competitive inhibitor is a molecule that looks similar to the substrate and can bind to the active site of the enzyme.
Step 5: Understand the competition. The competitive inhibitor competes with the substrate for the active site, meaning if the inhibitor is bound, the substrate cannot bind.
Step 6: Identify an example. Look for a molecule that can bind to the active site of an enzyme and block the substrate from binding.

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