Food

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Author:
mikonap
ID:
206073
Filename:
Food
Updated:
2013-05-14 08:00:53
Tags:
biology
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Description:
chapter 3
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  1. The six common elements found in food are:
    Carbon(C) Hydrogen(H) Oxygen(O) Nitrogen(N) Phosphorus(P) Sulfur(S)
  2. Five elements dissolved salts are:
    Soduim(Na) Magnesuim(Mg) Chlorine(Ci) Potassuim(K)Calcium(Ca)
  3. Trace Elements
    Iron (Fe) Copper (Cu) Zinc (Zn)
  4. Biomolecules
    are chemicals that are made inside a living thing
  5. Biomolecules in food are:
    Carbohydrates,Lipids ,Proteins and Vitamins
  6. Carbohydrates
    made C(carbon),H(Hydrogen),O(Oxygen)
  7. (A)Element Lipid :
    (B)Metabolic role :
    (C)Structural role :
    (D)Sources :
    • (A):Carbon ,hydrogen ,Oxygen
    • (B):Release  Energy in Respiration 
    • (C):Form  a protective  layer around the organs e.g Heart
    • (D):Butter,Oil
  8. (1) Types of carbohydrates:
    (2) Soures:
    (3) Structural :
    (4) Metabolic Role:
    • 1)Monosaccharides(1unit)egGlucose,Fructose
    •     Disaccharides(2 unit)eg Sucrose ,Maltose
    •     Polysaccharides(3 unit)egStarch,cellelose,
    • (2) Bread,potato,rice.flour
    • (3) Cellulose forms cell wall
    • (4) Glucose is made in photosynthesis and rele
  9. What is Triglyceride?
    Three  molecules of fatty acid joined to one  molecule of glycerol
  10. (A

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