NEET PG DENTAL EXAM

Detailed explanation-1: -Mechanical digestion in the oral cavity consists of grinding of food into smaller pieces by the teeth, a process called mastication. Chemical digestion in the mouth is minor but consists of salivary amylase (ptyalin, or alpha-amylase) and lingual lipase, both contained in the saliva.

Detailed explanation-2: -Digestion of food is a chemical change because the large macromolecules are broken down into simpler molecules by the enzymes present in the stomach and the intestines. It is a chemical change because it involves various chemical reactions.