Enzymes

Cards (22)

  • Enzymes are
    Proteins that function as biological catalysts that speed up the rate of chemical reactions and remain unchanged
  • Anabolic reactions are 

    building up of complex substances
  • Catabolic Reactions are

    breaking down of complex substances
  • Enzyme-Substrate complex is formed

    when active site is complementary
  • Enzyme + Substrate forms
    Enzyme-Substrate complex
  • Enzyme-Substrate complex forms
    Enzyme + Products
  • Why do we need enzymes for digestion
    To have smaller simpler substances to diffuse through the cell membrane
  • Starch to Maltose
    Amylase
  • Maltose to Glucose
    Maltase
  • Proteins to Amino Acids
    Protease
  • Fatty acids and Glycerol
    Lipase
  • Enzymes speed up chemical reactions

    by lowering the activation energy
  • Enzymes are chemically unchanged at the end of the reaction
  • Enzymes are highly specific
    due to its unique 3D shape
  • What is the Lock
    Enzyme
  • What is the key
    Substrate
  • Only the substrate with the 3D Shape complimentary to that of the active site can fit into the enzyme to form an Enzyme-Substrate Complex
  • 3 factors that affect enzyme activity

    Temperature
    pH level
    substrate concentration
  • How to increase enzyme activity
    Increase the temperature until it reaches optimum temperature
    Increase enzyme concentration
    Increase formations of Enzyme-Substrate complex thus increasing rate of reaction
  • Enzymes may not work when
    Inactive
    Denatured (extreme temperatures/pH levels)
  • Temperature
    Kinetic Energy
    Effective Collisions
    Enzyme-Substrate Complex
    Products formed
  • pH Level
    Effective Collision
    Enzyme-Substrate Complex
    Products formed