Water + Organic Molecules - PowerPoint by 0XtfWHwR

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									Water + Organic Molecules




Water, Carbohydrates, Lipids,
Proteins, and Nucleic Acids
Lipids
Lipids

 Organic compounds         Types of Lipids:
 that arenot soluble in          Triglycerides
 water                           Phospholipids
  Composed of C, H, O           Waxes
   Higher ratio of C and        Steroids
   H atoms to O atoms
   Non-polar
Fatty Acids
Fatty Acids

  Fatty acids can be:
    Saturated
       Single Bonds
    Unsaturated
       At least one double bond


    Hydrophobic
       Water hating
    Hydrophilic
       Water loving
Lipid Types
Triglycerides

 Three fatty acid
 molecules
 One glycerol molecule

 At room temperature:
   Saturated  Solids
      Butter, animal fat
   Unsaturated  Liquids
      Plant seed oil
Phospholipid

 Two fatty acid molecules
 One glycerol molecule
 One phosphate group

 Phospholipids form the lipid bilayer of the cell
Waxes

 Long fatty acid chain
 Attached to a long alcohol chain

 Waxes are waterproof
 Found on:
   Cuticle of leaves
   Outer part of fruits
   Ears
Steroids

Four fused carbon rings with functional
 groups attached.

   Cholesterol
   Estrogen
   Testosterone
Cholesterol

               Cholesterol is needed
               by the body for some
               cells and nerves to
               function.
               Two Types
                LDL: Bad Cholesterol
                    Produced by body
                   Diet, trans fats,
                    saturated fats
                HDL: Good Cholesterol
Anabolic Steroids

 Class of steroid hormones
  related to testosterone
 Increase protein synthesis
  and build up cellular tissue,
  especially muscle
 Health risks include:
  increase in cholesterol,
  acne, high blood pressure,
  and liver damage
Nucleic Acids
Nucleic Acids

 Very large and complex
 Store and transfer important info in the cell
 Two Major Types:
   RNA
   DNA
   Both are polymers
      Composed of thousands of nucleotides
      Nucleotides are made of a phosphate group, a sugar
      and a nitrogenous base

								
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