Question

1. What is a phospholipid composed of?
a. a polar head and a nonpolar tail
b. a nonpolar head and a polar tail
c. a polar head and tail
d. a nonpolar head and tail

Answer 1

Answer:

option a

Explanation:

Phospholipids form a special class of lipids. They are composed of a glycerol molecule substituted by one or two fatty acids and one additional polar group. The latter group can be choline (phosphatidylcholine or lecithin), ethanolamine, serine or inositol.