The Digestive System 0.0 / 5 ? BiologyExchange of materialsGCSEEdexcel Created by: errolshineCreated on: 30-11-14 13:08 What are starch, proteins and fats? They are big molecules which are too big to pass through the walls of the digestive system 1 of 7 What are sugars, amino acids, glycerol and fatty acids? They are small molecules that pass easily through the walls of the digestive system. 2 of 7 What do digestive enzymes do? They break down the big molecules into smaller ones. 3 of 7 What are the three digestive enzymes? carbohydrases, proteases and lipase 4 of 7 What do carbohydrases do? e.g. (amylase) Carbohydrases digest starch into sugars 5 of 7 What do proteases do? (e.g. pepsin) They digest proteins to amino acids. 6 of 7 What does lipase do? Lipase digests fat to fatty acids and glycerol. 7 of 7
Comments
No comments have yet been made