ABPI - Resources for Schools

"I found this site [on Digestion] very informative and easy to digest! An excellent resource for nutrition."

- Student

Enzymes and their uses

Age range 14-16

Enzymes in digestion

In the digestive system enzymes break down large insoluble molecules (e.g. starch, proteins and fats) into small soluble molecules that can be absorbed into the blood from the small intestines.

Large Insoluble Molecule Type of Enzyme Small Soluble Product
Carbohydrate (e.g. Starch) Carbohydrase Simple Sugars (e.g. glucose)
Protein Protease (e.g. pepsin) Amino Acids
Fat/Lipids Lipase Glycerol and Fatty Acids

You can learn more about the role of enzymes in digestion in the Digestion topic

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