Describe what happens to large molecules during digestion.

Answer 1

During digestion, large molecules such as proteins, carbohydrates, and fats are broken down into smaller molecules by various enzymes.

Proteins are broken down into amino acids by enzymes such as pepsin in the stomach and trypsin in the small intestine. Carbohydrates are broken down into simple sugars like glucose by enzymes such as amylase in the mouth and small intestine. Fats are broken down into fatty acids and glycerol by enzymes such as lipase in the small intestine.

Once these large molecules are broken down into smaller molecules, they can be absorbed into the bloodstream and used by the body for energy, growth, and repair. Any remaining waste products are excreted from the body.