Biology enzymes

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  • Emzymes
    • What are they?
      • Enzymes are a catalysts produced by living things.
        • A CATALYST is a substance which INCREASES the speed of a reaction without being CHANGED or USED UP in the reaction
    • What are they made of?
      • Enzymes  are all proteins and all proteins are made up of chains of amino acids.
    • What shape are they?
      • The enzymes have a unique shape that fits onto the substance involved in a reaction.
      • Enzymes are really picky they usually only catalyse one reaction.
        • This is because for the enzymes to work the substance has to fit its special shape.
          • If the substance doesn't match the enzyme then the reaction won't be catalyzed.
    • What does the temperature do to a enzyme?
      • Changing the temperature changes the rate of of an enzyme catalyzed reaction.
        • But if it gets too hot some of the bonds holding the enzymes together will break.
          • The destroys the enzyme's special shape and so therefore it wont work any more. It has become denatured


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