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Week 7 Terms
Terms
42
Other
Undergraduate 1
04/11/2010

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Term
Nutrition
Definition
The science that studies the relationship of foods to optimal health and performance.
Term
Nutrients
Definition
Substances found in foods that provide energy, regulate metabolism, and help with growth and repair of body tissues; necessary for good health.
Term
Micronutrients
Definition
Nutrients in food, such as vitamins and minerals that regulate functions of the cells.
Term
Carbohydrates
Definition
Compounds containing carbon, hydrogen, and oxygen; major source of energy for the human body; key energy source for muscular contraction.
Term
Glucose
Definition
Simple sugar; can be used by the body in its natural form.
Term
Calorie
Definition
The amount of heat necessary to raise the temperature of one gram of water one degree Celsius. This is used to measure the energy value of food and cost of physical activity.
Term
Glycogen
Definition
Form in which glucose is stored in the body; stored in liver and skeletal muscles.
Term
Fructose
Definition
Fruit sugar; a naturally occurring sugar found in fruits and honey.
Term
Galactose
Definition
A simple sugar found in breast milk of humans and other mammals.
Term
Lactose
Definition
Milk sugar; simple sugar found in milk products; composed of galactose and glucose.
Term
Maltose
Definition
Malt sugar; simple sugar found in grain products; composed of two glucose molecules linked together.
Term
Sucrose
Definition
Table sugar; composed of glucose and fructose.
Term
Complex Carbohydrates
Definition
Carbohydrates formed by three or more simple sugar molecules linked together; also called polysaccharides.
Term
Simple Carbohydrates
Definition
Formed by simple or double sugar units with little nutrient value; divided into monosaccharides and disaccharides.
Term
Monosaccharides
Definition
The simplest form of carbohydrate (sugars) formed by 5 or 6 carbon skeletons. The three most common monosaccharides are glucose, fructose and galactose.
Term
Disaccharides
Definition
Simple carbohydrates formed by 2 monosaccharide units linked together, one of which is glucose. The major disaccharides are sucrose (table sugar), lactose (milk sugar) and maltose.
Term
Starches
Definition
Long chains of sugars commonly found in whole grain foods; stored in the body as glycogen.
Term
Fiber
Definition
A complex carbohydrate in plant foods that cannot be digested by the human body but is essential in the digestion process.
Term
Fats
Definition
Compounds made by a combination of triglycerides; efficient form of energy storage.
Term
Trans Fatty Acids
Definition
Solidified fat formed by adding hydrogen to monounsaturated and
polyunsaturated fats to increase shelf life.
Term
Omega-3 Fatty Acids
Definition
Polyunsaturated fatty acids found primarily in cold water seafood;
thought to be effective in lowering blood cholesterol and triglycerides.
Term
Triglycerides
Definition
Form of fat that is broken down and used to produce energy.
Term
Fatty Acids
Definition
Basic structural unit of triglycerides.
Term
Unsaturated Fatty Acids
Definition
Obtained primarily from plant sources, liquid at room temperature.
Term
Saturated Fatty Acid
Definition
Obtained primarily from animal sources, solid at room temperature.
Term
Lipoproteins
Definition
Combinations of protein, triglycerides, and cholesterol in the blood.
Term
Cholesterol
Definition
A type of derived fat in the body necessary for hormone and cell synthesis.
Term
Amino Acids
Definition
Chemical structures that are the building blocks of protein. There are 20 that are needed by the body for proper function.
Term
Essential Amino Acids
Definition
These are amino acids that the body cannot make on its own and must obtain from the diet. There are 9 in total.
Term
Non-Essential Amino Acids
Definition
Amino acids that the body can synthesize on its own; does not need to get from dietary sources.
Term
Complete Proteins
Definition
Contain all essential amino acids, found only in animal-based foods.
Term
Incomplete Proteins
Definition
Do not contain all essential amino acids; found in vegetable sources.
Term
Vitamins
Definition
Organic substances essential for normal metabolism, growth and development of the body.
Term
Minerals
Definition
Inorganic elements found in the body and in food; essential for normal body functions.
Term
Antioxidants
Definition
Compounds such as vitamin C, E beta-carotene and selenium that prevent oxygen from combining with other substances to which it may cause damage.
Term
Organic
Definition
Foods that are grown without pesticides.
Term
Overweight
Definition
An excess amount of weight against a given standard such as height or recommended percent body fat.
Term
Obesity
Definition
A chronic disease characterized by an excessively high amount of body fat in relation to lean body mass.
Term
Basal Metabolic Rate
Definition
The lowest level of oxygen consumption necessary to sustain life.
Term
Spot Reducing
Definition
A false theory that claims that exercising a specific body part will result in significant fat reduction in that area.
Term
Cellulite
Definition
Term frequently used in reference to fat deposits that ‘bulge out.’ These deposits are nothing but enlarged fat cells from excessive accumulation of body fat.
Term
Energy-Balancing Equation
Definition
A principle holding that, as long as caloric input equals caloric output, the person will not gain or lose weight.
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