Q. The saliva helps in the digestion of–

4

Answer/सही जवाब: (4)

Explanation/विवरण: Saliva is a acidic (pH – 6.8) fluid which helps in digestion of starch. It is released from salivary gland. It is composed of 99.5% water, electrolyte, mucus. It contains the enzyme Lysozymase.