Lipids

• What elements are lipids made up of?

  C,H,O, some containing P and N
• What substances do and don't dissolve lipids?

  Substances that dissolve lipids: nonpolar solvents such as organic solvents (e.g. ethanol, acetone). Substances that do not dissolve lipids: polar solvents such as water.
• What are the functions of lipids?

  Energy storage, insulation, protection, and cell membrane structure.
• What are lipids made up of?

  Fatty acids and glycerol.
• What is a saturated fatty acid?

  A fatty acid with no double bonds in its carbon chain, and each C has maximum H's possible attached
• What is an unsaturated fatty acid?

  A fatty acid with one or more double bonds in its carbon chain.
• Where are saturated fatty acids found?

  Animal fats, such as butter and lard, and some plant oils, such as coconut oil and palm oil.
• Where are unsaturated fatty acids found?

  In foods such as nuts, seeds, and vegetable oils.
• What is the test for lipids?

  Alcohol and cold water test. Milky emulsion sat above liquid