How is digestion a chemical change?

Answer 1

Food digestion is a chemical change. Chemical reactions catalyzed by enzymes break down the food ingested into its component particles and these particles cannot be put back together through mechanical means.

Answer 2

Digestion involves breaking down complex food molecules into simpler molecules through the action of enzymes and acids. This process changes the chemical composition of the food, resulting in new molecules being formed. The breakdown of proteins into amino acids, fats into fatty acids and glycerol, and carbohydrates into simple sugars are examples of chemical changes that occur during digestion.

Answer 3

Digestion is a chemical change because it breaks down complex molecules like proteins and starches into smaller ones, like amino acids and sugars.