enzymes

• the active site is the region on an enzyme where the substrate binds to form an enzyme-substrate complex
• enzymes are biological catalysts that speed up chemical reactions
• enzymes are specific because they have a unique shape that fits only one type of molecule, their active sites are complementary to the structure of the substrate
• temperature affects enzyme activity because it changes the kinetic energy of the reacting particles which increases the rate of reaction but also causes denaturation of proteins
• what is a catalyst

  a substance which increases the rate of chemical reaction without being used up
• how does a catalyst work

  it provides an alternative pathway for the reaction with lower activation energy
• what is an enzyme

  an enzyme is a biological catalyst which speeds up the rate of chemical reactions without being used up
• enzymes are proteins