5 Questions
Which enzyme hydrolyzes internal α1:4 linkages but spares α1:6 linkages and terminal α1:4 linkages in the small intestine?
Pancreatic amylase
What are the end products of α-amylase digestion in the small intestine?
Maltose, maltotriose, and α-limit dextrins
Which hormones bring about the release of Pancreatic amylase from the acinar cells in the small intestine?
Secretin and CCK
Which enzyme is mainly responsible for the hydrolysis of α1:6 linkages in the small intestine?
Isomaltase
Where are the oligosaccharidases responsible for the further digestion of the starch derivatives located in the small intestine?
Brush border of small intestinal epithelial cells
Study Notes
Enzymes in the Small Intestine
- Isomaltase is the enzyme that hydrolyzes internal α1:4 linkages but spares α1:6 linkages and terminal α1:4 linkages in the small intestine.
α-Amylase Digestion
- The end products of α-amylase digestion in the small intestine are dextrins, maltose, and maltotriose.
Regulation of Pancreatic Amylase
- Cholecystokinin (CCK) and secretin are the hormones that bring about the release of pancreatic amylase from the acinar cells in the small intestine.
Hydrolysis of α1:6 Linkages
- Isomaltase is the enzyme mainly responsible for the hydrolysis of α1:6 linkages in the small intestine.
Location of Oligosaccharidases
- The oligosaccharidases responsible for the further digestion of the starch derivatives are located on the Brush Border of the intestinal epithelial cells in the small intestine.
Test your knowledge of carbohydrate digestion in the human body with this quiz. Explore the role of gastric contractions, pancreatic amylase, and small intestine enzymes in breaking down starch molecules.
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