About 2,870,000 results
Open links in new tab
  1. Active site - Wikipedia

    Usually, an enzyme molecule has only one active site, and the active site fits with one specific type of substrate. An active site contains a binding site that binds the substrate and orients it for catalysis.

  2. Protein - Active Site, Structure, Function | Britannica

    Nov 29, 2025 · Because of the difference in size between the two, only a fraction of the enzyme is in contact with the substrate; the region of contact is called the active site. Usually, each subunit of an …

  3. Active Site - The Definitive Guide | Biology Dictionary

    May 16, 2020 · The active site of an enzyme is the region that binds substrate molecules. This is crucial for the enzyme's catalytic activity.

  4. Active Site: Definition, Structure, and Function - Biology Insights

    Jun 24, 2025 · Countless chemical reactions occur with precision and speed within every living cell, orchestrated by specialized proteins that function as biological catalysts. At the heart of this cellular …

  5. Active site Definition and Examples - Biology Online Dictionary

    Jul 23, 2021 · The active site refers to the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs. It is a structural element of protein that …

  6. Structural Biochemistry/Enzyme/Active Site - Wikibooks

    Sep 11, 2024 · An active site is the part of an enzyme that directly binds to a substrate and carries a reaction. It contains catalytic groups which are amino acids that promote formation and degradation …

  7. ACTIVE SITE Definition & Meaning - Merriam-Webster

    Nov 5, 2025 · The meaning of ACTIVE SITE is a region on the surface of an enzyme whose shape permits binding only of a specific molecular substrate that then undergoes catalysis.

  8. What are the characteristics of an active site? - AAT Bioquest

    May 19, 2023 · What are the characteristics of an active site? The active site comprises only a small part of the enzyme. The larger portion of the enzyme’s structure acts as a supporting scaffold, providing …

  9. 4.6: Active Site - Biology LibreTexts

    Reactions in enzymes are catalyzed at a specific location known as the ‘ active site ’. Substrate binding sites are located in close physical proximity to the active site and oriented to …

  10. Active Sites Definition - General Biology I Key Term | Fiveable

    Active sites are specific regions on enzymes where substrates bind and undergo a chemical reaction. These sites are crucial for the enzyme's catalytic activity, determining how substrates fit and interact, …