By: Farah Merchant and Deepa Ravindra

Biomolecule Name: Lipids

Monomers and Polymers

Monomers of Lipids

  • Glycerol (C3H8O3)
  • Fatty Acids

Polymer formed by monomers (Glycerol and Fatty Acids): Triglycerides. Triglycerides are formed when each single bonded oxygen molecule of a fatty acid bonds to a carbon of the glycerol.

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Examples of Lipids

  • Fats
  • Oils
  • Waxes
  • Saturated Fat
  • Unsaturated Fat
  • Trans Fat

Functional Groups Always Found In Lipids

  • Carboxyl

Carboxyl is pictured below.

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Functions of Lipids

  • Energy storage
  • Mobilization
  • Cell differentiation
  • Cell growth
  • Cell membrane structure
  • Signal transmission
  • Hormone synthesis

Structure Aiding in Function

The lipid bilayer is an important structure in lipids because it creates a barrier of the cell which is composed of two layers of fat. The other thing about the lipid bilayer is that it only lets water and gasses pass through easily, which again results in it's protective layer.