1. LIPID (FAT) NOTES

2. Waxy or oily compounds that store energy in their bonds
Lipids
Waxy or oily compounds that store energy in their bonds
Elements in lipids – carbon, hydrogen & oxygen
Examples – fats, oils & waxes

3. Functions in the body Long-term energy storage Insulation
Forms the protective membrane that surrounds each cell
Some used as chemical messengers

4. Types of Lipids
Saturated – fats that hold all the hydrogen that molecule can hold
Examples: shortening & butter
H H H
H – C – C – C – O – H
H H H

5. Types of Lipids, cont.
Unsaturated – fats that have some spaces left in the molecule for hydrogen
Examples: oils H
C = C = C – O – H
H H

6. Building Blocks
Fatty acids – the building blocks of fats (lipids)

7. Food Energy 1 gram of lipids (fat) is 9 calories Healthy Living Fact:
Your body needs some fat.
Read the nutrition labels & choose unsaturated fats instead of saturated or trans fats