The chemical breakdown of food material in the digestive system is possible because of _____
Enzymes and acids
Digestion can be divided into two parts - mechanical digestion and chemical digestion. Mechanical digestion takes place in the mouth by the action of teeth. In this process, large food particles are physically broken down into smaller particles. Once, the food is broken down into smaller chunks, it is subjected to chemical digestion. In this process, food is acted upon by enzymes and acids. Only by the action of these substances, food can be digested completely.