What must starch be broken down into in order to be absorbed?
Because of its size, starch can not pass through the cell membrane. So, it must be broken down to its monomer form glucose with enzyme amylase.
Molecules that can pass through the wall of the small intestines are products that are broken down from starch, lipids and protiens. Starch breaks down into maltose which is then further broken down into glucose, which is absorbed by the intestine. Lipids break down into glycerol and fatty acids, which are absorbed by the intestines. Protiens break down into amino acids, which are absorbed by the intestines. Vitamins are minerals are alos absorbed by the…
Starch is a complex carbohydrate or polysaccharide, which consists of many monosaccharide molecules (glucose) joined together. Since the cell in the body has partially permeable membrane, it cannot absorb big size molecules, such as starch and protein. Hence, starch needs to be broken down to glucose before it can be absorbed into the cells of the body.