Enzymes

    Cards (7)

    • Enzymes
      Chemical reactions are what make living things work
    • Enzymes
      • They are catalysts
      • They speed up reactions inside living things by acting as catalysts
    • Catalyst
      A substance which increases the speed of a reaction without being changed or used up in the reaction
    • This diagram shows the lock and key model of enzyme action:
    • The substrate fits into the active site, the enzyme remains unchanged after the reaction, and the product is formed
    • This is a simplified model, as enzymes actually work in a more complex way
    • If only enzymes could speed up revision...
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