Lipids

  • Triglycerides and phospholipids are two types of lipids
  • Triglycerides consist of one glycerol molecule and three fatty acid molecules
  • An ester bond forms during a condensation reaction between glycerol and a fatty acid
  • The R-group in a fatty acid can either be saturated or unsaturated
  • Phospholipids have one fatty acid of a triglyceride replaced with a phosphate-containing group
  • Triglycerides and phospholipids have different properties due to their different structures
  • The emulsion test is used for identifying lipids
  • Knowledge on structural drawing of these molecules is necessary
  • Comparison between phospholipids and triglycerides is essential
  • Understanding of the health implications and sources of unsaturated and saturated fats is needed.