Enzymes, such as proteases, are important in digestion. Describe in detail how enzymes function, using other digestive enzymes as examples.

Enzymes are protein; enzymes can be reused/ are unchanged in the reaction; enzymes are specific; (enzymes are)catalysts / speeds up reaction; lowers the energy needed for the reaction; successful collisions /enzyme-substrate complex /ESC; active site; (enzyme and substrate) fit together; complementary shape; (digestive enzymes perform) chemical digestion / hydrolysis / catabolic reactions; break down, large /insoluble, molecules into, small / soluble, molecules; amylase converts starch to sugars /maltose; lipase converts lipid/fats, to fatty acids and glycerol; maltase converts maltose to simple sugars /glucose; ref to pH; ref to denaturation;