1. Warm-Up (10/1)
Answer the following questions, and explain in a complete sentence why each answer is correct.
Name
Date
Period
Which category of carbon-based molecules includes sugars and starches?
unsaturated fatty acids
Phospholipids
Proteins
Carbohydrates
Which elements does a carbohydrate contain?
carbon, hydrogen and nitrogen
carbon and hydrogen
carbon, hydrogen and oxygen
carbon, oxygen and nitrogen

2. Lipids

3. Lipids
Monomer: fatty acid
Long chain of hydrocarbons

4. Lipids
Polymer: triglyceride
head
tail

5. Lipids
head: polar and hydrophilic
tail: nonpolar and hydrophobic

6. Lipids head: polar and hydrophilic likes water!
tail: nonpolar and hydrophobic
doesn’t like water!

7. Saturated lipids are straight Unsaturated lipids are bent

8. Saturated lipids are straight Unsaturated lipids are bent

9. Lipids provide long-term energy
Found in:
Fats
Oils
Waxes
And lipids provide insulation

10. Lipids head: polar and hydrophilic likes water!
tail: nonpolar and hydrophobic
doesn’t like water!

11. Where does the energy come from in a lipid?
Lipids
Question!
Where does the energy come from in a lipid?
fatty acid
monosaccharide

12. Lipids
Question!
Why does a bear need a bunch of fat on his body to make it through winter?
fatty acid
monosaccharide

13. Lipids provide long-term energy
Found in:
Fats
Oils
Waxes
And lipids provide insulation

14. Closure Answer the following question in a complete sentence:
Name
Date
Period
Explain why lipids hold more energy than carbohydrates.
Scale from 1-10