mouth and stomach.
In the mouth, the enzyme amylase is present in the saliva. Amylase helps break down carbohydrates into smaller sugars.
In the stomach, several enzymes work together to break down proteins. Pepsin is the main enzyme responsible for protein digestion in the stomach. Additionally, gastric lipase helps break down fats to a certain extent.
It is important to note that while some preliminary digestion occurs in the mouth and stomach, most of the enzymatic digestion takes place in the small intestine, where a variety of enzymes are released by the pancreas and the lining of the intestine.