FDNS 2050 Study Guide - Quiz Guide: Omega-3 Fatty Acid, Trans Fat, Cereal Germ
29 Sep 2016
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Document Summary
98% of dietary fats are triglycerides, 2% cholesterol & phospholipids. Bile salts and lipases digest dietary fat into free fatty acids (ffa), glycerol, cholesterol, and phospholipids. Fat absorbed into intestinal cell becomes chylomicrons which enters the lymphatic system and into the blood goes to the heart (need an unlimited energy source) some fatty acids (mcts-medium chain triglycerides) go to directly to the liver. Lipids are deposited in body cells for storage as triglycerides (to be used as an energy source for later) Into muscle cells - storing fat in muscle for immediate use of energy. Liver continues to modify the composition of the lipoproteins (defined further down: what are the functions of fat, structure. Fat deposits act as insulators to protect internal organs: metabolic regulation. Essential ffa involved in intracellular metabolic pathways. Cholesterol is a part of some hormones. Adipose cells produce adipokines, like leptin, that regulate homeostasis (as you store fat, leptin increases & appetite decreases)
