Exchange- Digestion and absorption

Question 1

Function of Intestines?

Answer 1

site of exchange of digested nutrients in mammals

Question 2

What is Digestion?

Answer 2

 Breakdown of Large Insoluble Molecules into Small Soluble Molecules (so they can move into the blood
and then into the body cells)
 Starch/Glycogen (Carbohydrates) into Glucose by Amylase (Salivary in mouth, Pancreatic in small intestine) and Maltase/Lactase/Sucrase (on lining of small intestine)
 Proteins into Amino Acids by Endopeptidase/Exopeptidase/Dipeptidase (Endopeptidase in stomach, Exopeptidase in small intestine, Dipeptidase on lining of small intestine)
 Lipids into Monoglyceride and 2 Fatty Acids by Lipase (in small intestine)

Question 3

What do Intestine Absorb?

Answer 3

 Small Intestine absorbs small soluble nutrients (glucose, amino acids, monoglyceride and fatty acid,
vitamins and minerals)
 Large Intestine absorbs water