Enzymes

• In anabolic reactions enzymes bring the substrate molecules together
• In catabolic reactions the enzyme active site affects the bonds in substrates so they are easier to break
• Intracellular enzymes are enzymes that work inside the crll
• Extracellular enzymes are made by the cell and work outside the cell
• inhibitors are a substance that can slow or stop a reaction
• competitive inhibitor :

  structure similar to the substrate

  competes with the substrate for the active site of the enzyme
• non-competitive inhibitor :

  does not bind to the active site

  alters the overall shape of the enzyme molecule including the active site