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The Science of Nutrition Ch. 4 Carbohydrates Flashcards

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473705681Carbohydratecompound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body macornturients derived from plants 112
473705682Glucosethe form of sugar that circulates in the blood and provides the major source of energy for body tissues. When its level is low, we feel hunger. most abundant sugar preferred source of energy for brain important source of energy for all cells 112
473705683Photosynthesisprocess by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
473705684Carbohydrate - simpleSugars Monosaccaride - single sugar molecule Honey Glucose - fructose - glactose - ribose Disacchrides - 2 molecules Lactose - maltose -sucrose Less than 15% caloric intake 113-114
473705685Disaccharideany of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis 113
473705686monosaccharidea simple sugar that is the basic subunit of a carbohydrate 113
473705687Fructosea simple sugar found in honey and in many ripe fruits 113
473705688Galatosefound in milk 113
473705689Ribosea pentose sugar important as a component of ribonucleic acid, a five-carbon sugar present in RNA 113
473705690Lactoseglucose + galactose human and cow milk 114
473705691MaltoseA disaccharide made of glucose + glucose. , A DISACCHARIDE COMPOSED OF TWO GLUCOSE UNITS; SOMETIMES KNOWN AS MALT SUGAR. 114
473705692Fermentationa process in which an agent causes an organic substance to break down into simpler substances ATP 114
473705693Sucroseglucose + fructose disaccharide sweeter that lactose or maltose 114
473705694Alpha BondA type of chemical bond that can be digested by enzymes found in the human intestine. 115
473705695Beta BondA type of chemical bond that cannot be easily digested by enzymes found in the human intestine. 115
473705696Carbohydrate-complexStartch Complex CHO, glucose chain Rice, potatoes, bread Cannot be used directly long chains of glucose molecules - starch, glycogen and fiber 116
473705697Oligosaccharidescomplex carbohydrates that contain 3 to 10 monosaccharides 116
473705698Raffinosean oligosaccharide composed of galactose, glucose, and fructose. also called melitose, it is found in beans, cabbage, broccoli, and other vegetables 116
473705699Stachyosean oligosaccharide composed of two galactose molecules, a glucose molecule, and a fructose molecule. found in the chinese artichoke and various beans and legumes 116
473705700Polysaccharidemany sugars complex carb - long chains of glucose 116
473705701Starcha complex carbohydrate found chiefly in seeds, fruits, tubers, roots and stem pith of plants, notably in corn, potatoes, wheat, and rice storage form of glucose in plants 116
473705702GlycogenAn extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch. storage form of glucose in animals 117
473705703Dietary fiberThe nondigestible form of carbohydrates found in plant foods, such as leaves, stems, skins, seeds, and hulls. 117
473705704Functional Fiberthe nondigestible forms of carbohydrate that are extracted from plants or manufactured in the laboratory and have known health benefits 117
473705705Total Fiberthe sum of dietary fiber and functional fiber 117
473705706Soluble Fiberfiber that dissolves in water or is broken down by bacteria in the large intestine Pectins Gums Mucilages 117
473705707Viscoushaving a gelatinous or gluey quality, lacking in easy movement or fluidity viscous fibers from a gel when dissolved in water 117
473705708insoluble fibersfibers that do not dissolve in water Lignins Cellulose Hemicelluloes 118
473705709Salivary Amylasein mouth, released by salivary glands and begins chemical breakdown of starch 119
473705710Pancreatic amylaseEnzyme that breaks down starch into disaccharides (Maltose, Lactose, Sucrose) 119
473705711Maltasea digestive enzyme that breaks maltose into glucose. 119
473705712Sucrasea digestive enzyme that breaks sucrose into glucose and fructose 119
473705713Lactaseany of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose .119
473705714Carbohydrate LoadingA regimen designed to maximize muscle glycogen stores before an athletic event. Involves resting for one to three days before competition while consuming a very high-carbohydrate diet. The diet should provide 10 to 12 g of carbohydrate per kilogram of body weight per day 120
473705715Glycogen LoadingWhat is it called when athletes consume large amounts of carbs 2-3 days before an athletic event to store glycogen in skeleton muscles? (hint.. use both terms) 120
473705716Butyratea small fat fragment produced by the fermenting action of bacteria on viscous, soluble fibers; the preferred energy source for the colon cells short chain fatty acid is produced 117
473705717PectinsDietary fibers that are found in fruits 118
473705718Gums______ are a viscous fiber containing chains of galactose, glucuronic acid, and other monosaccharides, characteristically found in exudates from plant stems. 118
473705719MucilagesA viscous fiber consisting of chains of galactose, mannose, and other monosaccharides; characteristically found in seaweed. 118
473705720LigninsNon-carbohydrate forms of fiber in plants. Component of wood that acts like an adhesive/glue. 118
473705721Cellulosehard, nonliving material that makes up the cell wall of a plant cell 118
473705722Hemicellulosesgroups of polysaccharides found in plant cell walls that surround cellulose consist of xylose, mannose, arabinose and other monosaccharides 118
473705723Fiber - Large intestineexcreted 120
473705724Hormones- blood glucoseGlucagon (polypeptide derivative), Epinepherine (amino acid derivative), Cortisol (steroid / glucocorticoid) 121
473705725Insulinhormone secreted by the isles of Langerhans in the pancreas beta cells of pancreas 121
473705726Glucagona hormone secreted by the pancreas alpha cells of pancreas in response to decreased blood levels of glucose; causes breaakdown of liver stores of glycogen into glucose 121
473705727GluconeogenesisThe formation of glycogen, a glucose storing compound, from fatty acids and proteins rather than carbohydrates. 121
473705728Glycemic Indexa measure of how the ingestion of a particular food affects blood glucose levels 122
473705729Glycemic Loadthe amount of carbohydrate in a food multiplied by the glycemic index of the carbohydrate 123
473705730KetosisThe process by which the breakdown of fat during fasting states results in the production of ketones. when we do not eat enough carbs uses alternate soursce 125
473705731Ketonesdevelop when there is no glucose in the cell so uses fat as glucose, as fat breaks down it releases ketones in your blood 125
473705732KetoacidosisHigh levels of acids (ketones) in the blood; occurring in diabetes mellitus (type 2) when cells burn high levels of fats (producing ketones) because sugar is not available as fuel. 125
473705733Diverticulosisabnormal outpouchings in the intestinal wall 126
473705734Carbohydrates130g per day 19+ 45-65% of total energy intake 128
473705735Sugars in foods129 40 gal per person per year
473705736Carbohydrate-simple - health problemstooth decay ect. 130
473705737Enriched foodsfood in which nutrients that were lost in processing have been added back 131
473705738Fortified Foodsfoods that have nutrients added that are not naturally present in the food 131
473705739Fiber25g needed per day women 38 g for men 14 g per 1000 kcal 131
473705740Nutritive sweetenerssweeteners such as sucrose, fructose, honey, and brown sugar that contribute calories (or energy) 136
473705741Sugar Alcoholsa nutritive sweetener derived from sugar; examples include sorbitol, mannitol, and xylitol, isomalt 136
473705742Non-nutritive sweetnersnot heat stable (no cooing), saccharin, cyclamate, aspartame, neotame (heat stable) sucralose (heat stable) 138
473705743Acceptable Daily IntakeAn estimate of the daily exposure dose that is likely to be without deleterious effect even if continued exposure occurs over a lifetime 138
473705744Saccharina crystalline substance 300 times sweeter than sugar 138
473705745Acesulfame-KBrand names Sunette, Sweet One 139
473705746Aspartamean artificial sweetener made from aspartic acid 50mg per kg body weight per day 139
473705747Phenylketonuria PKUinherited disorder in which the infant lacks a liver enzyme 139
473705748Hyperglycemiaabnormally high concentration of glucose in the blood 140
473705749DiabetesA condition of abnormal use of glucose, usually caused by too little insulin or lack of response to insulin. 140
473705750Type 1 diabetesthe type of diabetes in which the pancreas produces no or very little insulin; often diagnosed in childhood, although some cases arise in adulthood. formerly called juvenile-onset or insulin-dep endent diabetes 141
473705751Autoimmunie diseaseThe body makes antibodies against its own good cells and tissues, causing inflammation and injury. Examples are rheumatoid arthritis, affecting the joints; sytematic lupus erythematosus (SLE), affecting connective tissues, skin, and internal organs 141
473705752Diabetes Mellitusdiabetes caused by a relative or absolute deficiency of insulin and characterized by polyuria 141
473705753Type 2 diabetesprogressive disorder in which body cells become less responsive to insulin 142
473705754Impaired fasting glucosean intermediate stage between normal glucose homeostasis and diabetes where the fasting blood glucose level is greater than 110 mg/dl (6.1 mmol/L) but less than 126 mg/dl (7.0 mmol/L). 143
473705755Lactose Intolerancecongenital disorder consisting of an inability to digest milk and milk products 145
473705756Fasting Hypoglycemiahypoglycemia that occurs after 8 to 14 hours of fasting 144

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