describe how proteins carbohydrates and fats are digested
Fats are broken down and digested into fatty acids and glycerol  Proteins are digested into amino acids  Carbohydrates are digested into simple sugars â¢ Digestion involves mechanical and chemical processes. An enzyme is a protein that speeds up a chemical reaction; digestive enzymes speed up the breakdown of a food.Fats are broken down and digested into fatty acids and glycerol  Proteins are digested into amino acids  Carbohydrates are digested into simple sugars â¢ Digestion involves mechanical and chemical processes. An enzyme is a protein that speeds up a chemical reaction; digestive enzymes speed up the breakdown of a food.