Organic Chemistry III

Professor Carl C. Wamser

Chapter 26 Quiz

1. (4 points) Draw an accurate structure for the phosphatide that would be formed from the following components.
Identify any chirality centers with an asterisk ( * ).

on C1: oleic acid (C18 - monounsaturated)
on C2: palmitic acid (C16 - saturated)
on C3: phosphate ester of 2-aminoethanol

2. (3 points) Identify the isoprene units (circle each one individually) in the terpene shown below.

3. (3 points) Mevalonic acid comes from three units of acetic acid (acetyl CoA).
Circle the three units of acetic acid in the structure below and place an asterisk ( * )
by each carbon that was originally a carboxyl group of acetic acid.