ž  Enzymes are specific proteins which act as biological catalysts that speed up the rate of chemical reactions without undergoing any change themselves

  • ž  A catalyst is a substance which speeds up the rate of reactions without undergoing any chemical changes itself.
  • ž  The molecule on which an enzyme acts is called a substrate. The substrate binds with the active site of the enzyme.
  • ž  Active site is the part of the enzyme to which the substrate molecule attaches.
  • The substance formed as a result of enzyme action is the product.
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