Dental Admissions Test (DAT) Practice Test

What type of enzymes have multiple binding sites?

1. Competitive enzymes

2. Non-competitive enzymes

3. Allosteric enzymes

4. Regulatory enzymes

The correct answer is: Allosteric enzymes

Allosteric enzymes have multiple binding sites, unlike competitive, non-competitive, and regulatory enzymes. Competitive enzymes have a single binding site and compete with substrate molecules for that site. Non-competitive enzymes have one binding site for a substrate and one for an inhibitor. Regulatory enzymes are enzymes that are controlled by feedback inhibition. Therefore, none of these types of enzymes have multiple binding sites. Allosteric enzymes, on the other hand, have multiple binding sites, including active and regulatory sites, allowing for more complex regulation and control of enzyme activity.