Function of liver and pancreas in digestion

These two accessory organs produce secretion that enter the duodenum. Besides its several other metabolic function, the liver secrets a brownish-green fluid called bile. It contains a mixture of salts such as sodium glycocholate and taurocholate.

Bile is stored in the gall bladder, and is passed into the duodenum through the bile duct. It is is not a digestive enzyme, but emulsifies fats, that is breaks them down into small droplets.

This forms a milky diode called emulsion, and this process is an aspect of mechanical digestion. This increases the surface area for lipase (enzyme that hydrolyses lipids). To act upon the droplets.

The pancreas, besides its function as an exocrine, hormone-secreting gland, secrets pancreatic juices(or fluid) which contains digestive enzymes. Through the pancreatic duct, this fluid passes from the pancreas to meet with the bile from the bile duct, into the duodenum.

Intestinal enzyme: the following table provides information about their sources, substrates and products.

Enzyme

Source

Substrate

Product

Amylase

Maltase

Lactase

Sucrose

Amino peptidase

Dipeptidase

Exopeptidease

Nucleotidase

enterokinase

Trypsin

Trypsin

Elastase

Chymotrypsin

Carbohydrates

Lipase

Nuclease

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Intestinal juice

Intestinal juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Pancreatic juice

Amylose

Maltose

Lactose

Sucrose

Peptides

Dipetides

Nuclestides

Trypsinogen

Protein

Chymotrypsinogen

Protein

Proteins

Peptides

Fats

Nucleic acids

Maltose

Glucose

Glucose & galactose

Glucose & frutose

Amino caid

Amino acids

Nuclesides

Trypsin(an enzyme)

Peptides

Chymotrypsin

Peptides

Amino acids

Amino acids

Fatty acids & glycerol

Nucletides.

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