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Chapter 15 Vocab.

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Term
Definition
nutrients   the substances in food that provide the raw materials and energy the body needs to carry out all of its essential processes.  
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calorie   the amount of energy needed to raise the temperature of one gram of water by one degree Celsius.  
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carbohydrate   a major source of energy made of carbon, hydrogen, and oxygen.  
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glucose   the major source of energy for your body's cells; simple sugar.  
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fats   energy-containing nutrients that insulate and protect internal organs.  
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proteins   needed for tissue growth and repair; contain nitrogen, carbon, hydrogen, and oxygen.  
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amino acids   small units which are linked together chemically to form large protein molecules.  
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vitamins   act as helper molecules in a variety of chemical reactions in the body.  
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minerals   nutrients that are not made by living things.  
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Food Guide Pyramid   classifies food into 6 groups.  
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Percent Daily Value   shows how the nutritional content of one serving fits into the recommended diet for a person who consumes 2,000 calories per day.  
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Dietary Reference Intakes   guidelines that show the amounts of nutrients that are needed every day.  
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