NEET PG DENTAL EXAM

Detailed explanation-1: -Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.

Detailed explanation-2: -Physical digestion is the mechanical breakdown of food. Physical digestion in the mouth includes chewing, which masticates, or grinds, food. Chemical digestion in the mouth is done by salivary amylase which is the enzyme in the saliva that breaks down complex carbohydrates into simple sugar.

Detailed explanation-3: -Examples of physical digestion, also known as mechanical digestion, are the act of chewing, as well as peristalsis in the stomach.

Detailed explanation-4: -Mechanical digestion is physical digestion done by teeth. Churning of food into smaller substances is an example of mechanical digestion. Breaking down food into a smaller substance is a helpful process so that food can easily undergo chemical digestion.