Lipids

• What are 5 functions of lipids?

  -Insulation

  -Protection

  -Energy storage and release

  -Waterproofing

  -Formation of a cell membrane
• What is the biochemical test for lipids?

  -Add an equal amount of ethanol and then water

  -Shake well

  -A white emulsion forms in a positive test
• What is the structure of a triglyceride?

  One glycerol joined to three fatty acids by three ester bonds
• What is the function of a triglyceride?

  Energy storage
• What is the structure of a phospholipid?

  One glycerol joined to two fatty acids and a phosphate group by two ester bonds
• What is the function of a phospholipid?

  Form phospholipid bilayers