Question

Carbohydrates in the chyme are hydrolysed into disaccharide by amylase of

Answer 1

This bile duct (from gall bladder and liver) and the pancreatic duct (from pancreas) releases pancreatic juice and bile into the duodenum through the common hepato-pancreatic duct which is guarded by a sphincter called sphincter of Oddi.The pancreatic juice contains inactive enzymes, i.e., trypsinogen, chymotrypsinogen, procarboxypeptidase, amylase, lipases and nucleases. The action of hepato-pancreatic secretion on digestion on carbohydrate, proteins and fats are summarised below (i) Carbohydrates in the chyme are hydrolysed by pancreatic amylase into disaccharides. Polysaccharides (starch)  Disaccharides (ii) Fats are broken down by lipases with the help of bile into di and monoglycerides. Triglycerides Emulsified triglycerids  Diglycerides Monoglycerides (iii) Proteins in the chyme reaching the intestine are acted upon by the proteolytic enzymes of pancreatic juice. Proteins Peptones  Proteoses 

Answer 2

The very first process of carbohydrate digestion begins in the mouth.

It is the salivary enzyme named amylase that breaks the food starch into maltose which is a disaccharide.

Due to acidic environment, it is converted into active enzyme that is pepsin through proteolytic enzyme which converts pepsin into proteins.