1. General Biology - Biochemistry
LIPIDS

2. LIPID
S
• Contain H, C, O
• More than a 2:1 ratio (H:C)
• Do not dissolve in water
• Monomers = fatty acids and
glycerol

3. Role of LIPIDS in Living
Things
• Store tremendous amounts of energy.
• Long term (in a seed, around your waist)
• Structural - Cell Membranes
• Functional – hormones,
venoms, poisons,
protection (waxy – cuticles, bees, ears)

4. Lipid monomers are
glycerol

5. and Lipid monomers are fatty acids
Polar End of Molecule Non Polar End
HYDROPHOBIC HYDROPHILIC
Water Fearing Water Loving

6. Formation of Lipids
+
1 Glycerol – ho ho ho
3 Fatty Acids

7. Dehydration Synthesis
???????????
Hydrolysis or Digestion

8. Triglycerides can be solid or liquid….
• Fats are solid at
room
temperature.
Saturated
• Oils are liquid
at room
temperature. Cold water
fish
Unsaturated

9. One of the most important Lipids
we will consider all year is a