Changes

*The '''first stage''' of carbohydrate digestion begins with α-amylase, which is an endoglycosidase. ''(This means it breaks bonds in the middle of the polymer to produce di-, tri- and oligo-saccharides).''

*The '''first stage''' of carbohydrate digestion begins with α-amylase, which is an endoglycosidase. ''(This means it breaks bonds in the middle of the polymer to produce di-, tri- and oligo-saccharides).''

*α-Amylase is present in [[Salivary Glands - Anatomy & Physiology|saliva]]. Salivary α-amylase is inactivated when it enters the [[Monogastric Stomach - Anatomy & Physiology|stomach]] due to it's acidic pH.

*α-Amylase is present in [[Salivary Glands - Anatomy & Physiology|saliva]]. Salivary α-amylase is inactivated when it enters the [[Monogastric Stomach - Anatomy & Physiology|stomach]] due to it's acidic pH.

*Carbohydrate digestion continues in the lumen of the [[Small Intestine - Anatomy & Physiology|small intestine]] as pancreatic α-amylase enters the [[Duodenum - Anatomy & Physiology|duodenum]] in the pancreatic duct. This is the site of the majority of carbohydrate digestion.

*Carbohydrate digestion continues in the lumen of the [[Small Intestine Overview - Anatomy & Physiology|small intestine]] as pancreatic α-amylase enters the [[Duodenum - Anatomy & Physiology|duodenum]] in the pancreatic duct. This is the site of the majority of carbohydrate digestion.

*The '''second stage''' is the digestion of di-, tri-, and oligo-saccharides to monosaccharides.

*The '''second stage''' is the digestion of di-, tri-, and oligo-saccharides to monosaccharides.

**This is done by di-, tri-, and oligo-saccharidases which have a glycocalyx to trap their substrate. They are bound to enterocytes.

**This is done by di-, tri-, and oligo-saccharidases which have a glycocalyx to trap their substrate. They are bound to enterocytes.