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Does inhibitor alter the structure of en...

Does inhibitor alter the structure of enzyme?

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### Step-by-Step Solution 1. **Understanding Enzyme Inhibition**: Enzymes are biological catalysts that speed up chemical reactions. Inhibitors are substances that decrease or stop the activity of enzymes. 2. **Types of Inhibitors**: There are two main types of enzyme inhibitors: - **Competitive Inhibitors**: These inhibitors resemble the substrate and compete for the active site of the enzyme. When a competitive inhibitor binds to the enzyme, it forms an enzyme-inhibitor complex, preventing the substrate from binding. However, this type of inhibition does not alter the structure of the enzyme itself. - **Non-Competitive (Allosteric) Inhibitors**: These inhibitors bind to a site other than the active site (known as the allosteric site). When a non-competitive inhibitor binds, it causes a conformational change in the enzyme's structure. This change can prevent the substrate from binding to the active site, thus inhibiting the enzyme's activity. 3. **Conclusion**: Based on the types of inhibitors, we can conclude that: - Competitive inhibitors do not alter the structure of the enzyme. - Non-competitive (allosteric) inhibitors do alter the structure of the enzyme, preventing substrate binding. 4. **Final Answer**: Yes, some inhibitors do alter the structure of the enzyme, particularly non-competitive inhibitors that bind to the allosteric site.
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