Question

name substances which following enzymes act in human digestive system 1. trysin,2.amylase,3.pepsin,4.lipace

why does absorption of digestive occur in small intestine

Answer 1

1. trypsin act on peptons, peptides to give amino acid
2. amylase act on undigested starch into sugar
3. pepsin act on protein to give peptones
4. lipase act on fats to give fatty acid and glycerol .

small intestines have small finger like structure which increase the surface area of absorption also excessive Coiling is the another reason of large surface area of absorption villi have blood vessels which transport absorbed food and further another reason can be because food becomes ready to be absorbed in small intestine.