Path of a starch molecule thur the digestive tract?

Question

Start point is the mouth and absorbed by glucose. Active enzymes, their location, and effect on the starch / sugar molecule.

Answer 1

I think you can find all of this in your biology or nutrition book. Saliva contains an enzyme called amylase that does a small amount of digestion of starch into maltose. When you swallow, though, as soon as what you chewed up hits the acids in the stomach, that enzyme is inactivated, and no digestion of starch occurs in the stomach. In the small intestine, though, pancreatic amylase continues the digestion of starch to maltose, and maltose is digested to glucose by maltase. At that point, mainly in the lower part of the small intestine, the glucose is absorbed into the blood stream.

Answer 2

In the mouth, salivary amylase breaks starch down to disaccharides. The disaccharides pass through the esophagus and stomach relatively undigested. When they reach the duodenum, pancreatic amylase breaks them down into glucose. The glucose is absorbed via facilitated diffusion into the cells of the small intestines. It then enters the blood stream to be used by other cells throughout the body for cellular respiration.