It is also found on the Brush border attached to the membrane on the apical side of our entericide. So to summarize what we just said, let's take a look at the following diagram. So, we eat the carbohydrates, such as starch in the mouth. Salivary amylase breaks down the carbohydrates very large molecules into polysaccharides, smaller ones. These polysaccharides ultimately end up in the lumen of the small intestine, where our pancreatic amylase breaks down the polysaccharide into disaccharides, our maltose, sucrose and lactose. Now, Maltose is broken down at the Brush border into two glucose molecules.