Digestion and Absorption in GI Track by examville

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          DIGESTION AND ABSORPTION IN GIT


THIS INCLUDES:


1. CARBOHYDRATE DIGESTION AND ABSORPTION
2. FATS DIGESTION AND ABSORPTION
3. PROTEINS
4. WATER AND ELECTROLYTES


   1. CARBOHYDRATE DIGESTION:


In Mouth,
Starch -----------alpha amylase ------   Maltose.


In Stomach,
Sucrose -------HCl---------     glucose and fructose.


In Duodenum,
Starch ------------- Pancreatic alpha amylase-----   Maltose.
pH 7.1


In Small intestine,
Disaccharides ----------------disaccharidases………..> monosaccharides.
Absorption:


Monosaccharides in the gut lumen are absorbed in jejunum or proximal ileum.
Absorption occurs by:
Simple diffusion and Active transport
Carriers:


1. Gl
								
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