Exam 1 Study Guide
Exam 1 Study Guide NUTR 300
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This 5 page Study Guide was uploaded by alexis johnston on Saturday December 6, 2014. The Study Guide belongs to NUTR 300 at University of Washington taught by Elizabeth Kirk in Fall2013. Since its upload, it has received 121 views. For similar materials see Nutrition For Today in Nutrition and Food Sciences at University of Washington.
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Date Created: 12/06/14
N1UTR 300 Exam 1 Sample Questions Macronutrient a class of nutrients that humans need to consume in relatively large quantities more than 1 gday Micronutrient a class of nutrients that humans need to consume in relatively small quanUUes Chronic Disease A noninfectious disease that develops slowly persists over a long period of time and tends to result in progressive breakdown of tissues and loss of function Essential nutrients a susbtance that must be obtained from the diet to sustain life Carbohvdrates an organic compound made up of one or more sugar molecules Primary source of energy for the body Comprised of C H O 4 kcalg Monosaccharides Glucose Most common monosaccharide in body Fructose Metabolized to glucose in the liver Galactose Usually bound to lactose Converted to glucose in the liver Polysaccharides digestible starches and non digestibe ber amylose amylopectin glycogen cellulose Starches the glucose storage molecules of plants Amzose long unbranched chains of glucose Amogectin Long branched chains of glucose Glycogen o long branched chains of glucose molecules 0 the glucose storage molecule of animals found in the liver and muscles Proteins a nitrogen containing macronutrient made from joined amino acids Suport growth tissue repair and maintenance Comopsed of C H O and N 4 kcalg Fats a lipid that is solid at room temperature Lipids Major form of stored energy 9 kgg Composed of C H O 9 kcalg N1UTR 300 Exam 1 Sample Questions Ulcerative colitis In ammatory disease of the large intestine Probiotics Selected live microorganisms Used for treatment of diarrhea IBS H pyoriassociated ulcers food allergies Intolerance gastrointestinal discomfort caused by foods example lactose intolerance Common intolerances wheat milk and soy Lactose intolerance inadequate lactase production Approximately 75 of the world39s population is affected by lactose intolerance Fiber Soluble dissolve in water fruits vegetables rice bran psyllium seed Functions delays gastric emptying slows glucose absorption Insoluble do not dissolve in water whole grains vegetables Functions increases fecal bulk decreases intestinal transit time Food sources whole grains vegetables Glucago a hormone secreted by the pancreas in response to decreased blood glucose 0 Glycogen breakdown Enhances gluconeogenesis 0 Glucagon also promotes protein and lipid breakdown Ketones an alternative fuel source 0 When insufficient glucose availableconsumed gluconeogenesis supplies glucose for a brief time To preserve muscle protein body switches over to making ketones process is ketogenesis 0 Tissues can use ketones for energy production but not as ef ciently as glucose 0 Risk of negative effects o Poor energy source for brain and red blood cells Chzme mixture of partially digested food Peristasis wavelike muscular contraction and relaxation that propels food forward though the GI tract
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