digestive secretions

Digestive Secretions

Saliva from salivary glands

Amylase

digests starch/glycogen to maltose

Gastric juice from stomach glands

Hydrochloric acid

changes inactive pepsinogen to pepsin

Pepsinogen

Activated to pepsin which digests proteins to peptides

Lipase

digests fats into fatty acids and monoglycerides

pancreatic juice from pancreas

Trypsinogen

Activated to trypsin which digests proteins to peptides and which activates chymotrypsinogen

Bile from the liver

Bile Salts

Emulsification and absorption of fats

Bile pigments (ex: billirubin)

Breakdown products of haemoglobin which will be excreted in the faeces

Succus entericus from the crypts and Brunner's glands

Aminopeptidase

Digests peptides to amino acids

Maltase

Digests maltose to glucose

Sucrase

Digests sucrose to glucose and fructose

Lactase

Digests lactose to glucose and galactose

Enterokinase

Activates trypsinogen to trypsin