Term
| Where does digestion of carbohydrates begin? |
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Definition
| Mouth with salivary amylase |
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Term
| Where does carbohydrate digestion continue? |
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Definition
| Intestines with pancreatic amylase and brush border enzymes finish breaking down products and disaccharides |
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Term
| Where does protein digestion begin? |
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Definition
| Stomach with pepsin to produce short-chain polypeptides |
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Term
| Where does protein digestion finish? |
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Definition
| Duodenum and jejunum with pancreatic trypsin, chymotrypsin, elastase, and carboxypeptidase and brush border enzyme aminopeptidase |
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Term
| Where does fat digestion begin? |
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Definition
| Mouth with salivary lipase to break down simple fats |
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Term
| Where does fat digestion continue? |
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Definition
| Duodenum with the action of pancreatic lipase |
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Term
| What digests phospholipids into fatty acids? |
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Definition
| Phospholipase A from pancreas |
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Term
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Definition
| Secrete mucous to neutralize the excessive acidity of the stomach mucosa |
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Term
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Definition
| Secrete HCl and intrinsic factor to help the small intestine absorb Vitamin B12 and causes a low pH |
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Term
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Definition
| Secrete pepsinogen, which is the inactive form (zymogen) of pepsin |
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Term
| Microvilli brush border enzymes |
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Definition
Disaccharidases (lactase)
Peptidases (enterokinase)
Phosphatases (Alkaline phosphatase) |
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Term
| Salivary amylase: site of action, source, substrate, products |
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Definition
| mouth, saliva, starch, maltose |
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Term
| Pepsin: site of action, source, substrate, products |
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Definition
| stomach, gastric glands, protein, shorter polypeptides |
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Term
| Pancreatic amylase: site of action, source, substrate, products |
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Definition
| duodenum, pancreatic juice, starch, maltose/maltriose/oligosaccharides |
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Term
| Trypsin, chymotrypsin, carboxypeptidase: site of action, source, substrate, products |
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Definition
| small intestine, pancreatic juice, polypeptides, amino acids/di,tripeptides |
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Term
| Pancreatic lipase: site of action, source, substrate, products |
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Definition
| small intestine, pancreatic juice, triglycerides, fatty acids/monoglycerides |
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Term
Maltase
Sucrase
Lactase
Aminopeptidase |
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Definition
Site of action: Small intestine
Source: Brush border of epithelial cells
Substrate: maltose, sucrose, lactose, polypeptides
Products: glucose, glucose/fructose, glucose/galactose, AA/di,tripeptides |
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