NUTR 3210 Lecture Notes - Lecture 6: Carboxylic Acid, Leukotriene, Phosphatidylserine
19 Nov 2016
School
Department
Course
Professor
Document Summary
Lipids are soluble in organic solvents eg ether. Lipids are insoluble in polar solvents such as water. Lipids have a wide variety of structures and functions. Lipids provide a source of energy and storage. Lipids are the building blocks of biological membranes (cellular, nuclear, mitochondria membranes) - but lipids can disrupt membrane function: example lipid rafts (contain high concentrations of glycosphingolipids and cholesterol) Impacts the palatability and satiety effects of foods. Lipids provide a concentrated source of energy (9 kcal/gram) There are two essential fats: alpha-linolenic (omega-3) and linoleic acid (omega-6) Remember, an essential nutrient is one that must be obtained externally as the body cannot synthesize or synthesize it rapidly enough to meet the needs of one or more physiological functions. Lipids are carriers of fat-soluble vitamins (such as a, d,e, and k) Lipids are necessary for growth and development. Fatty acids contain chains of 2 to 24 carbons. There are two kinds of fatty acids: saturated and unsaturated.
