Question

what is saliva ? what is its role in digestion ?​

Answer 1

Answer:

Saliva is 98% water, so it moistens the mouth and helps compact food into softened particles for easier swallowing. It's important to chew your food as much as possible, as taking longer to chew gives the enzymes in saliva time to begin the process of breaking down carbohydrates, a very important part of digestion

Explanation:

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Answer 2

Explanation:

Saliva is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is 98% water plus electrolytes, mucus, white blood cells, epithelial cells, enzymes, antimicrobial agents such as secretory IgA, and lysozymes.

The role of saliva in the digestion of food are, It moistens the food for easy swallowing. It contains a digestive enzyme called salivary amylase, which breaks down starch into sugar. Lubricates and moistens food, thus aiding in swallowing.