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The enzyme that begins the digestion of starch in the small intestine is pancreatic Amylase
Amylose is digested into two and three glucose fragments called maltose and maltotriose
Fragments of the amylopectin with 1,6 bonds cannot be broken down by amylase.These fragments are called dextrin
Digestion of starch is completed by three enzymes in the villi : Maltase, glycosides and dextrinase which digest maltose maltotriose and dextrin
Glucose is absorbed into villus epithelium cells by secondary active transport with sodium ions.
Glucose moves by facilitated diffusion in interstitial spaces inside the villus.
Blood carrying glucose flow through villus capillaries to venuls in the sub-mucosa of the wall of the small intestine
Blood is carried by the hepatic portal vein to the liver where excess glucose is converted to glycogen and stored

Digestion
Instructions | More on the Hexagons Approach

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