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Asked by Sonal13 12th September 2009, 10:04 PM
Answered by Expert
Answer:

Chewing in mouth breaks food to smaller pieces   →   Salivary amylase breaks starch down to maltose   →    Food bolus is swallowed    →     Passage of food from mouth to pharynx to oesophagus and then to stomach       →     Stomach muscles mix food with gastric juice, producing chyme   →    In stomach, pepsinogen is converted to pepsin, which digests proteins to  peptides    →     Pancreatic juice released into small intestine    →  Sodium bicarbonate, present in pancreatic juice, neutralizes the acidic material from the stomach    →    Pancreatic amylase digests starch to maltose  →      Trypsin and chymotrypsin digest proteins to peptides    →       Peptidases complete the digestion of peptides to amino acids    →   Maltase completes the digestion of maltose into glucose   →  Bile, from liver, emulsifies fats   →  Lipase digests fats to glycerol and fatty acids    →    Absorption of digested food by villi of small intestine   →      Absorption of water, sodium and other useful substances by large intestine   →     Elimination of undigested food from the body.

 

SOURCE

ENZYME/ PRODUCT

FOOD

PRODUCT

MOUTH (salivary glands)

Salivary amylase

Polysaccharides

Maltose

STOMACH

Pepsin

HCl and mucus

Proteins

Peptides

PANCREAS

 

Pancreatic amylase

Trypsin

Lipase

 

Polysaccharides

Proteins

Fats

Maltose

Peptides

Fatty acids
and glycerol

 

LIVER

 

 

SMALL INTESTINE

Bile

 

 

Maltase

Peptidases

Lipids

 

 

Maltose

Peptides

Emulsified fats

  

Glucose

Amino acids

 

Answered by Expert 14th September 2009, 10:22 AM
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