Monomers

• glycerol
• fatty acid

Macromolecules

• lipids - are built out of glycerol, fatty acids, and other molecules

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Glycerol

• glycerol contains 3 hydroxyl groups
  - glycerol is a type of sugar alcohol
  H
|
H - C - O - H
|
H - C - O - H
|
H - C - O - H
|
H

Fatty Acid

• fatty acids contains a carboxyl group
  - fatty acid typically contains 12–18 carbons, though some may have as few as 4 or as many as 36
• fatty acids can have a number of double bonds which determines whether they are saturated, unsaturated, or trans fat
  O H H H H H
‖ | | | | |
H - O - C - C - C - C - … - C - C - H
| | | | |
H H H H H