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Nutrition
  • sum of all interactions between an organism and the food it consumes
Nutrients
  • organic and inorganic substances found in foods the body that are required for body functioning
Nutritive value
  • nutrient content of specified amount of food
macronutrients
  • nutrients needed in large amounts
  • carbs, fats, protein, minerals, vitamins, water
micronutrients
  • nutrients required in small amounts to metabolize the energy providing nutrients
Carbohydrates:

  Sugars
  • simplest carb
  • monosaccharides (single molecules)
  •    glucose, fructose, galactose
  • disaccharides ( double molecules)
 
Carbohydrates:
   Starches
  • insoluble, nonsweet
  • polysaccharides (composed of chains of glucose molecules
Carbohydrates:

    Fiber
  • complex carb from plants
  • supplies roughage/bulk to diet
  • cant be digested
  • helps satisfy appetite & digestive tract to function effectively & eliminate waste
Carbohydrate Digestion
  • Enzymes (ptyalin, pancreatic amylase, disaccharidases: maltase, sucrase, lactase)
  • absorbed by small intestine
Enzymes
Biologic catalysts that speed up chemical reactions
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