Question

Some drugs bind to a site other than, theactive site of an enzyme This site is knownas

• A. non-active site
• B. allosteric site
• C. therapeutic site
• D. Theoretical

Answer 1

The Correct Option is B

To solve this question, we need to understand the concept of enzyme activity and how different sites on an enzyme function.

Enzymes are proteins that act as catalysts in biochemical reactions. The primary site where the substrate binds to the enzyme is called the active site. The active site is specifically shaped to fit the substrate molecule, which participates in the reaction.

However, there are other sites on the enzyme that can bind molecules. These are often called allosteric sites. Allosteric sites are places on the enzyme where a molecule can bind non-covalently, not on the active site, and can cause changes to the enzyme's shape or function. Binding at these sites can increase or decrease the activity of the enzyme without directly blocking the active site or the substrate.

Now let's evaluate the options:

• Non-active site: This term is not typically used in biochemical terms. Although it implies a site other than the active site, it lacks specificity.
• Allosteric site: This is the correct answer. Allosteric sites are specific sites away from the active site, where molecules can bind and alter the enzyme's activity.
• Therapeutic site: Does not relate to enzyme binding; rather, it pertains to medical treatment locations.
• Theoretical: This is not related to enzyme structure or function regarding binding sites.

Hence, the correct answer is allosteric site.