Question

What describes the mechanical digestion process?

A) Foods are physically broken down into smaller pieces
B) The body makes chemicals to break down food
C) Large molecules are broken down into smaller molecules
D) Food is moved from one part of the digestive system to another part

Answer 1

A

Mechanical digestion is the physical breakdown of food into smaller pieces (chewing, churning in the stomach, segmentation in the intestines) to increase surface area for chemical digestion.