Question

What is the role of saliva in disgetion?(6marks)

Answer 1

ANSWER :-

Saliva is a fluid which is secreted by the salivary glands. It helps in digestion of food by following Ways.

1. Saliva contains a digestive enzyme called salivary amylase, which converts carbohydrates in to maltose sugars.
2. It cleans the mouth cavity and tends to destroy germs that cause teeth decay. It contains lysozomes which help in destroying the bacteria.
3. It moistens and lubricates food which again helps in swallowing.
4. It acts as solvent, dissolving some food particles to stimulate taste buds of the tongue.