Enzymes

Cards (28)

  • Enzymes are proteins.
  • Enzymes are functional in the tertiary and quaternary structure.
  • Each enzyme is the specific helper to a specific reaction.
  • Enzymes need to be the right shape for the job.
  • Enzymes are named for the reaction they help.
  • Enzymes typically end in 'ase'.
  • Sucrase breaks down sucrose.
  • Maltase breaks down maltose.
  • Lactase breaks down lactose.
  • Protease breaks down proteins.
  • Lipase breaks down lipids.
  • DNA polymerase builds DNA.
  • Enzymes act as catalysts in cellular reactions.
  • Enzymes speed up chemical reactions without being changed in the reaction & are reusable.
  • Building molecules are synthesis enzymes.
  • Breaking down molecules are digestive enzymes.
  • Enzymes take in substrates to the active site where they produce the products.
  • Enzymes are specific with what they do and will not change.
  • Enzymes have a lower activation energy.
  • Denature: alteration of a protein shape through a form of external stress. The bond will break and the enzyme will not work.
  • Enzymes can be denatured through heat, acid, and force.
  • The most desired temperature for an enzyme will result in high enzyme activity.
  • Too high of a temperature will denature the enzyme because the high molecular movement destroys bonds.
  • Low temperature will result in low activity and the molecules will move slowly.
  • Each enzyme has an optimal pH and too high or too low of the pH will denature the enzyme.
  • Increasing substrates will increase reaction rate to a point.
  • Competitive inhibitors are chemicals which resemble an enzyme's normal substrate and will compete with it for an active site. It is reversible depending on concentration of inhibitor and substrate.
  • Non-competitive inhibitor will bind to a different site, an allosteric site and it is reversible depending on concentration of inhibitor and substrate.