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The groups of enzymes involved in the breakdown of food are:

Carbohydrases break down carbohydrates:

Starch is a type of carbohydrate. The carbohydrase that breaks down starch is amylase :

Proteases break down proteins:

Lipases break down lipids:

Carbohydrases

Carbohydrases break down carbohydrates in several regions of the digestive system.

Most of the carbohydrate we eat is starch, so this will be the main substrate in the early part of digestion for enzyme action.

Region of digestive system

Enzyme

Where produced

Substrate

Broken down into

Proteases

Proteases break down proteins in several regions of the digestive system.

Region of digestive system

Enzyme

Where produced

Substrate

Broken down into

Lipases

Lipases break down lipids in one region of the digestive system.

Region of digestive system

Enzyme

Where produced

Substrate

Broken down into

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Animal organisation - digestion - AQA - Revision 6 - GCSE Combined Science - BBC Bitesize

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The groups of enzymes involved in the breakdown of food are: Carbohydrases break down carbohydrates: Starch is a type of carbohydrate. The carbohydrase that breaks down starch is amylase : Proteases break down proteins: Lipases break down lipids: Carbohydrases break down carbohydrates in several regions of the digestive system.

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GCSE Science Biology (9-1) Digestive Enzymes