1 - UCSB



Indicate which class of lipids each of the following belongs to.

a. [pic]

b. [pic]

c. [pic]

d. [pic]

e. [pic]

f. [pic]

g. [pic]

h. [pic]

1. What fatty acids are produced by the hydrolysis of 2-oleyl-1,3-distearylglycerol?

2. Spermaceti is a from a sperm whale which contains as a major component hexadecyl hexadecanoate. Draw hexadecyl hexadecanoate.

3. Cembrene is a .

[pic]

4. (Ch 26 # 1 & 3) Which of each of the following pairs of fatty acids or fats would have the higher melting point and explain why.

a. palmitic acid & stearic acid

b. palmitic acid & palmitoleic acid

c. oleic acid & linoleic acid

d. glyceryl tripalmitoleate & glyceryl tripalmitate

Identifying Lipids (nonpolar compounds)

- Fatty acids

- Fats

- Oils

- Waxes

- Phospholipids (membrane lipids)

o Phosphoacylglycerol:

o Sphingolipid:

- Prostaglandins

- Terpenes

- Steroids

Mechanisms:

Oxidation of fats and oils by oxygen

Synthesis of prostaglandins from arachidonic acid

Chemistry of vision – isomerization of retinal

Biosynthesis of terpenes

Synthesis of isopentyl pyrophosphate from acetyl-CoA and malonyl-CoA

Synthesis of dimethylallyl pyrophosphate from isopentyl pyrophosphate

Synthesis of terpenes from isopentyl pyrophosphate & dimethylallyl pyrophosphate

Synthesis of cholesterol from squalene

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