Links
Lipids molecular model on YouTube
Objectives
- Describe the characteristics of lipids
- Describe the structure of lipids
- Explain why phospholipids form bilayers
- Relate the structure of phospholipids to cell structure and function
Key points
- lipids don’t mix well with water because they are nonpolar
- phospholipids have a hydrophobic and hydrophilic end, making them unique
- phospholipids form bilayers due to their structure, making up membranes
- other examples of lipids
- steroids are an important class of lipid
- fats (triglycerides) are energy-storing compounds
- pigments like chlorophylls
In-class activities
- identify all the sources of lipids in you diet over the last 24 h
- where in your body do you think they are being used