1. Lipids

2. Lipid Structure Fats, Oils, Waxes
Provide energy for cells, cell structure, insulation
Lipids & Proteins compose the cell membrane
Cholesterol: gives cell membrane flexibility

3. Lipid Structure Fats, Oils, Waxes
Glycerol molecule
Fats, Oils, Waxes
Provide energy for cells, cell structure, insulation
Lipids & Proteins compose the cell membrane
Cholesterol: gives cell membrane flexibility
Structure (2 parts):
“Head” = glycerol
“Tails” = fatty acids
Monomer: Fatty Acid
Polymer: Lipid

4. Saturated Fats Long chain of C-C single bonds
Lard
Long chain of C-C single bonds
Each C is “saturated” with H atoms
Solid at room temps
Very common in animal fats

5. Unsaturated Fats Long chain of C bonds (some double bonds)
Coconut oil
Olive oil
Long chain of C bonds (some double bonds)
Causes the chain to be crooked
Unsaturated: Less space for H atoms
Liquid at room temps
Plant oils

6. Saturated vs. Unsaturated1 2 3 4 5 6 7 8 18 9 17 16 15 14 13 12 11 10 18
The double bond reduces the need for more H atoms to stabilize the molecule. 1 2 3 4 5 6 7 8 16 15 14 13 12 9 11 16 10

7. Normally, blood flows freely through a vein
Blood vein
RBC
RBC
RBC
RBC
RBC
RBC

8. Too much saturated fats…
Blood vein
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
RBC
Reduced circulation…
Blood clots…
High blood pressure
Cholesterol & saturated fats

9. Cholesterol levels

10. Kobe Kuiz What are the two parts of a lipid called?
Which part is the “head”? Which part are the “tails”?
How do small fatty acids and glycerol molecules bond to make a lipid?
How do saturated and unsaturated fatty acids differ?
Which lipid gives cells their flexibility?
Why are saturated fats less healthy?