NTR 9-22-15 & 9-24-15
NTR 9-22-15 & 9-24-15 ART 100-02
Popular in Introduction to Art
Popular in Art
This 3 page Class Notes was uploaded by Jennifer Cox on Monday September 28, 2015. The Class Notes belongs to ART 100-02 at University of North Carolina - Greensboro taught by Jennifer V. Reich in Fall 2015. Since its upload, it has received 62 views. For similar materials see Introduction to Art in Art at University of North Carolina - Greensboro.
Reviews for NTR 9-22-15 & 9-24-15
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 09/28/15
NTR 213 92215 amp 92415 Chapter 5 Lipids Fats Phospholipids and sterols Student learning outcomes At the end of this chapter you should be able to Discuss bene ts and risks of dietary fats 39 Compare and contrast types of fats 39 Select foods containing healthy fats and limit unhealthy fats Sources of dietary fats Animal sources meat cheese dairy Plant sources vegetable oils nuts avocados Hidden dietary fat French fries pizza pasta dishes baked goods salad dressings Benefits of dietary fats Provide texture avor aroma to foods Lipid types 39 Glycerol fatty acids chains of carbon atoms acid at end Phosphate chains of carbon atoms 39 Multiple chemical rings Carbon bonding Carbon can form four bonds Saturated vs Unsaturated fats 39 Saturated Fats Carbons are saturated by hydrogens 39 Unsaturated fats carbons not saturated Monounsaturated vs polyunsaturated 39 Monounsaturated fats one double bond 39 Polyunsaturated fats more than one double bond Omega3 vs Omega6 polyunsaturated fats 39 Omega3 rst double bond at 3rd bond from omega end Omega6 rst double bond at 6th bond from omega end Essential vs nonessential fatty acids 39 Essential fatty acids cannot be made in the body so they are essential in the diet Example omega3 fatty acids 39 Nonessential fatty acids can be made by the body so they are not essential in the diet Example omega6 fatty acids Transfat transfatty acids Found naturally in dairy products 39 Created when unsaturated fatty acids are partially converted to saturated fatty acids by the industrialized process of hydrogenation 39 Decreases the reactivity to decrease rancidity and increase shelf life Most dangerous dietary fat Look for hydrogenated oils in ingredients list Cholesterol an animal sterol 39 Nonessential nutrient made by the liver 39 In call membranes of animal cells Dietary sources animal products 39 Plant sterols can reduce human cholesterol 39 Used to make vitamin D and steroid hormones for example estrogen testosterone cortisol Cholesterol transport in blood 39 Lipids are hydrophobic water fearing oil and water do not mix Blood is mostly waterLipids are surrounded by hydrophilic water loving molecules for transport in blood Chylomicrons 39 Chylomicrons transport triglycerides cholesterol and fatsoluble vitamins from the small intestines to the liver Triglycerides in chylomicrons are broken down into glycerol and fatty acids by lipoprotein lipase in blood vessels to cross membranes than are reassembled into triglycerides in cells Chylomicron remnants are returned to the liver Very low density lipoproteins V LDL VLDL particles are mad by the liver VLDL particles function similar to chylomicrons transport triglycerides Which are broken down by lipoprotein lipase Remainder of VLDL particles are returned to the liver or made into LDL particles Low density lipoproteins LDL LDL particles deliver cholesterol to cells LDL particles bind to LDL receptors on cells to help cholesterol move from the blood into cells High density lipoproteins HDL HDL particles transport cholesterol from cells to the liver 39 The liver uses cholesterol to make bile Bile 39 Bile is stored in the gall bladder before entering the small intestine Bile emulsi es breaks up larger particles dietary fat so it is more accessible to lipase lipid digesting enzymes 39 Dietary ber binds cholesterol to keep it from being reabsorbed into the body from the small intestines so more is exerted from the body Decrease your LDL and increase HDL 39 Decrease dietary transfat saturated fat and cholesterol 39 Increase dietary polyunsaturated fats and monounsaturated fats 39 Quit smoking Exercise Improve social relationships Lipoproteins are blood transport particles 39 We do not eat LDL and HDL 39 Dietary lipids such as cholesterol and triglycerides are packaged into lipoprotein particles such as LDL and HDL for transport in blood LDL is lethal Blod vessel injury in ammation in LDL oxidization generates plaques blood vessel walla in atherosclerosis 39 Antioxidants found in fruits and vegetables can limit oxidation of LDL Risk factors for atherosclerosis and cardiovascular disease Diet 39 Smoking Diabetes High blood pressure 39 Obesity Sedentary 39 Blood lipids high LDL triglycerides low HDL Family history age gender race Dietary recommendations 39 Total fat 203 5 of total calories 3040 for ages 13 amp 2535 for ages 318 39 Saturated fat less than 7 of total calories 39 Cholesterol less than 300 mg per day
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'