Explain the process starch goes through from when it enters your mouth to your small intestine.

I would look at what starch is, what process is happening and how does it happen: Starch molecules are carbohydrates composed of sugar monomers of carbon, hydrogen and oxygen, a single sugar molecule is called a monosaccharide, multiple of these join by glyosidic bonds by condensation to form a polysaccharide (starch).  Starch is commonly found in foods such as pasta and potatoes, composed of alpha glucose molecules, starch molecules are large, therefore an insoluble carbohydrate used for storage. The process occurring when starch travels from your mouth to stomach is digestion- firstly the food is ingested, in the mouth the starch undergoes physical digestion to increase its surface area, salvia produced in the salivary glands contains amylase. This is a carbohydrase enzyme used to break the glyosidic bonds in hydrolysis to form maltose (a disaccharide of 2 alpha glucose). Food then enters the stomach via the oesophagus, here further physical breakdown occurs and a low PH denatures amylase. Once it has reached the first part of the small intestine, the duodenum, pancreatic amylase is secreted from the pancreas, further hydrolysing any remaining starch to maltose. In the ileum of the small intestine the epithelium lining produces the enzyme maltase, a carbohydrase that hydrolyses maltose to alpha glucose. The hydrolysed sugar molecules, which are now soluble and transportable, are absorbed from the small intestine into the blood to be carried around the body and used for biological processes (assimilation).