The region of the enzyme that interacts with the substrate is called the:

Question

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The region of the enzyme that interacts with the substrate is the active site. Enzymes help facilitate the formation of bonds by holding multiple substrates near each other in the active site.
Key Takeaway: Each enzyme is designed to fit only substance in the active site. The relationship is similar to that between a lock and key. With every lock (enzyme), there is only one key (substrate) which can unlock the lock. While there can be many copies of that key, that particular key is specifically designed to open that particular lock. This one to one correspondence of the enzyme and substrate is called specificity.

The Region of the Enzyme That Interacts with the Substrate