596 UNIT 29 | Physiology of the Digestive System 3. large polypeptides are broke

Question

596 UNIT 29 | Physiology of the Digestive System 3. large polypeptides are broken down into small polypeptides by scac Proteins are chemically broken down into large polypeptides by and chymongsin and small polypeptides are broken down into amino acids by vil. enish eiddle enzymes in the cell lining the villus. eliller enzymes in the cell 4, Amino acids enter the capillary transported to the superior mesenteric vein, which fuses with the at the villus through and are vein to form the vein, which transports blood to the liver. 5. Large lipid globules in the stomach must be separated by and into smaller lipid globules. 6. When fatty chyme enters the duodenum, the release of the hormone triggers smooth muscle contraction in the release of bile. Bile travels first through the causing the duct, then into the duct before entering the duodenum.

Explanation / Answer

4. Amino acid enters the capillary at the villus through epithelial cells and is transported to the superior mesenteric vein, which fuses with splenic vein to form the hepatic portal vein, which transports blood to the liver.

5. Large lipid globules in the stomach much be separated by release of enzyme lipase and emulsification into smaller lipid globules.

6. When fatty chyme enters the duodenum, the release of the hormone Cholecystokinin (CC) triggers smooth muscle contraction in the Gallbladder, causing the release of bile. Bile travels first through the common hepatic duct, then into the cystic duct before entering the duodenum.

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