Lesson Plan: Enzymes in Digestion Biology

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to explain the action and importance of digestive enzymes.


Students will be able to

  • describe the sites of production and the action of amylases, proteases, and lipases,
  • explain the importance of enzymes in breaking down long molecules in digestion,
  • state the monomers of proteins, lipids, and carbohydrates as amino acids, glycerol and fatty acids, and sugars respectively.


Students should already be familiar with

  • the fact that the process of digestion is how humans break down food to release nutrients,
  • the basics of the lock-and-key theory of enzyme action.


Students will not cover

  • the detailed structure of biological molecules,
  • hydrolysis and condensation reactions,
  • the effect of pH/temperature/substrate concentration on enzyme-controlled reactions.

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