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7: Nutrition
| Question | Answer |
|---|---|
| anencephaly | a type of neural tube birth defect characterized by absence of covering over and incomplete development of the brain associated with folic acid deficiency during the first third of pregnancy |
| ataxia | loss of motor coordination |
| beriberi | a neurologic illness characterized by dementia and ataxia caused by deficiency of vitamin B-1 (thiamin) |
| carbohydrates | foods primarily made up of carbon atoms and water that are the principle source of dietary energy |
| complex carbohydrates | starches that are water-soluble polysaccharides of glucose such as those in grains and potatoes |
| dental plaque | organic acids that erode dental enamel mixed with a slime on teeth and gums produced by bacteria that digest simple carbohydrates |
| disaccharides | carbohydrates made of two basic units such as sucrose and lactose |
| essential amino acids | Nine of the twenty amino acids that are essential nutrients: lysine, methionine, threonine, tryptophan, leucine, isoleucine, valine, phenylalanine, and histidine |
| essential fatty acids | two fatty acids, linoleic and linolenic acid, that are essential nutrients |
| essential nutrients | more than 40 different nutrients that are essential to maintaining good health but that cannot be synthesized by the body and must be obtained from food or other external sources. The six categories of essential nutrients include proteins, carbohydrates, |
| fat soluble vitamins | vitamins A, D, E, and K |
| fats | triglycerides |
| fatty acids | lipids composed of chains of 18-22 carbon atoms that may be saturated (completely bound with hydrogen atoms) or unsaturated (incompletely bound with hydrogen atoms) |
| fiber or non-starch polysaccharide | polysaccharides that cannot be broken down by digestive enzymes and are therefore not available as an energy source |
| food | any nourishing substance eaten, drunk, or otherwise taken into the body to sustain life, provide energy, or to promote growth |
| fructose | a monosaccharide found in fruits and honey |
| galactose | a monosaccharide found in milk sugar |
| glucose | a monosaccharide found in fruits and honey |
| glycolipids | lipid substances with linked sugar groups that are key structural elements in cell membranes and precursors of other biologically active molecules important in cell signaling |
| HDL-cholesterol | cholesterol carried on high-density lipoproteins that can absorb excess cholesterol in the blood and return it to the liver for recycling. Sometimes called "good cholesterol". |
| homocysteine | a sulfur containing amino acid that, when present in elevated levels in blood has been associated with increased risk of coronary heart disease, stroke, and thrombosis even among individuals with normal cholesterol levels |
| Kwashiorkor | a form of protein deficiency, most often seen in starving children, characterized by retarded growth and abdominal distention caused by liver enlargement |
| lactose | a disaccharide made from glucose and galactose; milk sugar |
| LDL-cholesterol | cholesterol carried on low-density lipoproteins that can penetrate arterial walls and, when oxidized, forms atherosclerotic plaque. Sometimes called "bad cholesterol". |
| lipids | biologic compounds that are soluble only in organic solvents |
| major or macrominerals | minerals required in amounts greater than 1-200 milligrams per day including calcium, magnesium, phosphorus, sodium, potassium, and sulfur |
| marasmus | a severe form of both protein and energy deficiency often associated with body weight that is 60% less than normal |
| minerals | inorganic elements found in both living and non-living things. All minerals are essential nutrients |
| monosaccharides | the basic structural units of carbohydrates consisting of a six-carbon ring with six oxygen and twelve hydrogen atoms attached such as glucose, fructose, and galactose |
| nutrition | the study and science of the dietary requirements of living things for proper health and development |
| omega 3 fatty acids | polyunsaturated fatty acids contained in fish and some vegetable sources that appear to decrease triglyceride levels and the rate of progression of atherosclerosis, lower blood pressure, and reduce the risk of coronary heart disease |
| osteoporosis | a condition characterized by decreased mineral bone mass and weakened bones causing a tendency to develop fractures following relatively minor injury that is often, but not always, caused by calcium deficiency |
| pellegra | a disease characterized by skin irritation, diarrhea, and permanent dementia caused by deficiency of niacin or nicotinic acid |
| pernicious anemia | a disease characterized by anemia and nerve damage caused by vitamin B-12 deficiency |
| phospholipids | lipid substances with linked phosphate groups that are key structural elements in cell membranes and precursors of other biologically active molecules important in cell signaling |
| polysaccharides | carbohydrates made of long chains of monosaccharide units |
| proteins | polymers of amino acids that contain the elements carbon, hydrogen, oxygen, nitrogen, and sulfur |
| rickets | a disease of children characterized by malformed bones caused by vitamin D deficiency |
| satiety | he subjective sensation of fullness |
| scurvy | a disease characterized by decreased wound healing and bleeding, especially of the mouth and gums, caused by vitamin C deficiency |
| simple carbohydrates | mono- or disaccharides such as table sugar or candy that are not usually a component of the fibrous structure of foods and are readily digested. They rapidly reach the bloodstream as an available energy source |
| spina bifida | a type of neural tube birth defect characterized by absence of covering over and incomplete development of the spinal cord associated with folic acid deficiency during the first third of pregnancy |
| sterols | lipids that are composed of three six carbon rings and one five carbon ring fused together forming the basic structure for cholesterol, bile salts and many hormones such as cortisols, estrogens, androgens, and progesterones |
| sucrose | a disaccharide made from glucose and fructose; table sugar |
| superoxide dismutase | any of a group of antioxidant enzymes that consist of trace elements bound to protein that protect cells from damage caused by free radicals |
| thrombosis | blockage of blood flow in veins or arteries caused by blood clots |
| trace or microminerals | minerals required in daily quantities less than 20 milligrams per day including chromium, copper, iodine, iron, manganese, selenium, and zinc |
| triglycerides | lipids composed of three fatty acids bound to glycerol, a three carbon polyalcohol |
| vitamins | organic compounds essential for many metabolic functions. Most are essential nutrients and deficiencies may cause general and specific signs and symptoms of illness |
| water soluble vitamins | B vitamins, folic acid, niacin, and vitamin C |
Created by:
kvp
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