- Triglyccerides: 3 fatty acid tails (stores energy in body)
- Lipases: enzymes that break down triglycerides into energy
- Phospholipids: cell membrane-two fatty acid tails with a head and a negatively charged phosphate group. (Tails are uncharged). These form spheres or “Micelles”. All cells are phospholipid bi-layers.
- Cholesterol: maintains fluidity of cell membranes. It holds fatty-acid tails of phospholipids. It maintains integrity of cell membranes by inter-locking and over-lapping the phospholipid tails.
- Hydrocarbons: give energy on the carbon tail of the triglyceride (stuff that burns)
- Glycerold head and fatty-acid tail
- Saturated: Hydrogen on the outside-straight line hydrocarbon tail. Solid at room temperature (worst fat for us).
- Unsatruated-double bonds between carbons eliminate hydrogen and creates kinks. Liquid at room temperature.