Question

Describe mechanical digestion using one example.

Answer 1

Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestionbegins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.

Answer 2

Answer: Mechanical digestion is the physical act of breaking down the food by non-chemical means. Mechanical digestion begins in the mouth by the physical act of mastication (chewing). ... The bolus is then pushed by wave-like muscular contractions called peristalsis that moves the food to the stomach.

Explanation: