1. Mouth: Salivary amylase, produced by the salivary glands, begins the digestion of starch in the mouth. It breaks down long starch molecules into smaller sugar molecules.

2. Small Intestine: Pancreatic amylase, produced by the pancreas, continues the digestion of starch in the small intestine. It further breaks down the smaller sugar molecules from the mouth into even smaller sugar molecules, which can be absorbed by the body.

Therefore, amylase plays a crucial role in the digestion of carbohydrates in both the mouth and the small intestine.