Chapter 41

Large lipid droplet mix with bile salts triglyceride

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Unformatted text preview: d pH and pepsin diges3on? •  Epithelial cells replicate frequently and the lining of the stomach is replaced every three days What is a gastric ulcer? What is the cause of stomach ulcers? How are stomach ulcers treated? Diges3on in the small intes3nes: 1.  Where most chemical diges_on takes place 2.  Small intes_ne is six meters in length 3.  Duodenum (first 25 cm): Where chyme from stomach mixes with diges_ve juices from pancreas, liver, and gallbladder 4.  Duodenum also secretes its own diges_ve enzymes Pancrea&c juices: 1.  Contain the buffer, sodium bicarbonate (NaHCO3), that neutralizes the acidity of chyme 2.  These juices also contain the enzymes that digest proteins, carbohydrates, lipids, and nucleic acids. Liver: Produces bile Gallbladder: Stores and concentrates bile. Bile is released into the small intes_ne Fat diges3on requires bile salts: . Large lipid droplet Mix with bile salts Triglyceride Bile salts have a hydrophobic and a hydrophilic side These will a3ach to fat globules, emulsifying them, and causing them to form micelles Micelle Pancrea_c Lipase Glycerol Fa3y acids Monoglyceride...
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This document was uploaded on 02/10/2014.

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