Question

Explain the role played by different digestive juices in digestion and the organs which secrete them.

Answer 1

Digestive juices secreted by various organs such as salivary glands in the mouth, stomach, liver and pancreas help in the process of digestion of food.

1. Saliva secreted by the salivary glands in the mouth aids in the breakdown of starch present in the food to simple sugar.
2. Digestive juices secreted by the inner walls of the stomach aid in the breakdown of protein into simpler food forms
3. Bile secreted by the liver helps in the digestion of fats.
4. Pancreatic juice secreted by pancreas aids in the breakdown of carbohydrates into sugars, proteins into amino acids and fats into fatty acids.