Composition and Functions of Various Digestive Juice| Human | Biology

There are five digestive juices; saliva, gastric juice, pancreatic juice, succus entericus (intestinal juice) and bile. The necessity for so many digestive juices is that -(a) One juice does not contain all the enzymes necessary for digesting all the different types of foodstuffs. For instance, saliva contains only carbohydrate-splitting enzymes; whereas gastric juice contains both fat- and protein -splitting enzymes [...]