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GI enzymes
Enzymes present
13
Physiology
Undergraduate 2
04/01/2014

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Cards

Term
SALIVARY
AMYLASE
Definition
SUBSTRATE: Carbohydrates
PRODUCT: polysaccharides (maltose,α-dextrin, maltotriose)
SOURCE: Salivary Glands
LOCATION OF RXN: Oral cavity to
esophagus
Term
PANCREATIC
AMYLASE
Definition
SUBSTRATE: Starch
PRODUCT: Smaller polysaccharides
SOURCE: Pancreas
LOCATION OF RXN: Small intestine
Term
SUCRASE
Definition
SUBSTRATE: Sucrose
PRODUCT: glucose and fructose
SOURCE: Epithelial cells in SI/brush border
LOCATION OF RXN: Small intestine
Term
α-DEXTRINASE
Definition
SUBSTRATE: α-dextrin
PRODUCT: Glucose
SOURCE: Epithelial cells in SI/brush border
LOCATION OF RXN: Small intestine
Term
LACTASE
Definition
SUBSTRATE: Lactose
PRODUCT: Glucose, galactose
SOURCE: Epithelial cells in SI/brush border
LOCATION OF RXN: Small intestine
Term
MALTASE
Definition
SUBSTRATE: Maltose
PRODUCT: Glucose
SOURCE: Epithelial cells in SI/brush border
LOCATION OF RXN: Small Intestine
Term
PEPSIN
Definition
SUBSTRATE: Proteins
PRODUCT: Peptides
SOURCE: Stomach chief cells
LOCATION OF RXN: Stomach
Term
TRYPSIN/
CHYMOTRYPSIN
Definition
SUBSTRATE: peptides
PRODUCT: Smaller peptides
SOURCE: Pancreas acinar cells
LOCATION OF RXN: Small intestine
Term
DIPEPTIDASE
Definition
SUBSTRATE: Dipeptides
PRODUCT: Amino acids
SOURCE: Epithelial cells in SI/brush border
LOCATION OF RXN: Small intestine
Term
AMINOPEPTIDASE
Definition
SUBSTRATE: Amino acid at amino ends of smaller peptides
PRODUCT: Amino acid
SOURCE: Epithelial cells in SI/brush border
LOCATION OF RXN: Small intestine
Term
GASTRIC LIPASE
Definition
SUBSTRATE: Fat
PRODUCT: Monoglycerides, fatty acids
SOURCE: Stomach chief cells
LOCATION OF RXN: Stomach
Term
LINGUAL LIPASE
Definition
SUBSTRATE: Fat
PRODUCT: Fatty Acid, diglycerides
SOURCE: Salivary glands
LOCATION OF RXN: Oral cavity to esophagus
Term
PANCREATIC LIPASE
Definition
SUBSTRATE: Fat
PRODUCT: Monoglycerides, fatty acids
SOURCE: Pancreas
LOCATION OF RXN: Small intestine
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