process of digestion in human being in small intestine
Answers
Answer:
Small intestine is the site of complete digestion of carbohydrates, proteins and fats. In small intestine semi digested food mixes with bile juice, pancreatic juice and intestinal juice.
Action of bile juice:Bile is yellowish watery fluid produces in liver. The bile salts help in breaking the large fat globules, which is called 'emulsification of fats'.
Function of bile juice:It provides an alkaline medium for the intestinal and pancreatic enzymes to act on food. The emulsification of fats by bile provides a large surface area for enzyme activity.
Action of pancreatic juice:This juice is rich in digestive enzymes such as amylase, pancreatic lipase, chymotrypsin, carboxypeptidase and trypsin.
'Amylase' acts on starch and complex sugars and converts them into maltose.
'Pancreatic lipase' acts on fats and converts them into fatty acids and glycerol.
'Chymotrypsin' acts on casein and converts it into paracasein.
'Carboxypeptidase' acts on peptides of food and converts them into smaller peptides and amino acids.
'Trypsin' acts on proteins and converts them into peptides.
Action of intestinal juice: Intestinal glands that secrete intestinal juice is also called succus entericus. It also contains traces of maltase, sucrase, lactase and lipase enzymes.
1.Maltose is converted into Glucose by maltase.
2.Sucrose is converted into glucose and fructose by sucrase.
3.Lactose is converted into glucose and galactose by lactase.
4.Emulsified fats is converted intl fatty acids and glycerol by lipase.
Hope it helped u.....