Bile is a greenish-yellow liquid that is secreted by liver and stored in gall bladder. It contains bile pigments and bile salts.

Functions: The bile performs two functions:

(i) Bile makes acidic food, coming from stomach, alkaline so that pancreatic enzymes act on it.

(ii) Bile salts break down the fat present in the food into smaller globules. This increases the efficiency of enzyme to act and digest the food.