Enzymes

• Enzymes

  Increase rate of reaction by lowering activation energy of the reaction they catalyse

  They are 3D tertiary structured globular proteins whose shape is determined by the primary sequence of amino acids
• Active site

  Area of enzyme that is made Up of only a few amino acids and forms a small depression in the overall enzyme
• Substrate

  Molecule that enzyme acts upon

  Enzymes are specific to substrates they bind to meaning that only one type of substrate fits into the active site of the enzyme
• When the enzyme binds to the substrate

  They form an enzyme substrate complex

  The structure of the enzyme is altered so that the active site of the enzyme fits around the substrate -induced fit model