Human Mouth and Types of teeth and its function || Chapter-15 || Class XI #subscribe #cbse #biology

Digestion is the process through which complex food is converted into a simpler form to facilitate absorption of nutrients and release of energy in the body. Food provides energy and organic materials for growth and repair of tissues. Biomacromolecules in food cannot be utilized by our body in their original form. They have to be broken down and converted into simple substances in the digestive system. This process of conversion of complex food substances to simple absorbable forms is called digestion and is carried out by our digestive system by mechanical and biochemical methods.