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Lipids
- hydrophobic
- fats, waxes,steroids, oils
- long term energy storage
- insulate the body
- cushion and protect organs
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Saturated Fats
- Single bonds(btwn C)
- Straight chains
- Solid @ room temp.
- all animal fats= solid @ room temp.
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Unsaturated Fats
- double bonds (@ least 1)
- bent chains
- liquid @ room temp. (oils)
- found in plants
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Triglyceride
- 4 monomers
- glycerol + 3 fatty acids= 1 triglyceride
- formed by condensation reaction between glycerol and fatty acid
- 3 Ester bonds formed
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Fatty Acids
Saturated or Unsaturated Fats
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Fats in Animals
animals have high proportion of sat. fatty acids
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Lipids in Our Bodies
- Cell Membrane- made up of phospholipids(lipids):
- head- polar; hydrophilic
- 2 tails- nonpolar; hydrophobic
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Phospholipids
glycerol+ 2 fatty acids+phosphate
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Bonds Formed
Phosphodiester bonds
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