Difference Between Substrate And Active | Site

The distinction between substrate and active site is the distinction between and machinery . The active site provides the specific chemical environment and energy required to lower the activation energy barrier, while the substrate provides the chemical bonds that are to be broken or formed. Their interaction is highly specific, temporary, and essential for the sustenance of life processes.

The Central Role of Enzymes as Biological Catalysts - The Cell - NCBI difference between substrate and active site

| Feature | Active Site | Substrate | | :--- | :--- | :--- | | | A specific region or cleft on the surface of an enzyme where the reaction occurs. | The specific molecule or molecules upon which an enzyme acts. | | Chemical Nature | Composed of amino acid residues (R-groups) from the enzyme protein. | Can be any organic or inorganic molecule (sugars, lipids, proteins, toxins). | | Role | Catalyst/Workstation. It lowers activation energy and holds the substrate in place. | Reactant. It is the raw material that binds and is chemically changed. | | Location | A small, specific part of a larger enzyme structure. | An independent molecule floating in the cellular fluid until binding occurs. | The distinction between substrate and active site is

A substrate is the in a biochemical reaction. It is the specific molecule that an enzyme acts upon to create a product. The Central Role of Enzymes as Biological Catalysts