Lect7 Lipids2

Lect7 Lipids2 - Outline Functions of Fat Types of Lipids...

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1 Outline Functions of Fat Types of Lipids & their functions How we digest fat Transportation of lipid throughout the body Health effects of blood lipids Digestion of Fat in the Stomach 1. Gastric lipase –(lip ase : breaks apart lipids) –Activated by an acidic environment –Acts on triglycerides containing short- & medium-chain fatty acids Digestion of Fat in the Small Intestine 1. Bile –Made in liver, stored in gall bladder –Emulsifies digested fat Primary site of fat digestion Bile Recycling
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2 Bile emulsifies lipids Bile emulsifies lipids Pancreatic Lipase triglycerides monoglycerides & FA --- Absorbed in Brush Border Lipoprotein
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3 Chylomicrons in lymph enter the blood stream near the heart . Chylomicrons Liver makes VLDL , which are secreted into bloodstream 1. can be used by cells or 2. can return to liver or 3. can be transformed into LDL LDL: Transport of Triglycerides 1. Can return to Liver 2. Can supply cells with cholesterol
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4 HDL: Transport of Cholesterol 1.
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