4. Lipids


What are lipids?

  • macromolecules
  • all contain carbon, hydrogen and oxygen
  • triglycerides, phospholipids and cholesterol


  • one molecule of glycerol with 3 (TRI-) fatty acids attacheted to it
  • synthesised by the formation of ester bonds 

Ester Bonds

  • 1 triglyceride has 3 ester bonds, one inbetween each fatty acid.
  • formed in a condensation reaction (water molecule is released)
  • Also known as Esterification 


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