Briefly distinguish between mechanical and chemical digestion.

Here's the distinction between mechanical and chemical digestion:

5.2.1 Digestion is an important part of our nutrition. Briefly distinguish between mechanical and chemical digestion.

1. Mechanical digestion: This is the physical breakdown of food into smaller pieces, increasing its surface area. Examples include chewing and the churning of food in the stomach.
2. Chemical digestion: This is the breakdown of large, complex food molecules into smaller, simpler nutrient molecules through the action of enzymes and acids. These smaller molecules can then be absorbed by the body.