Section 24.3
Lipids
Practice Test
1.
What functional group do fatty acids and amino acids have in common?
a.
amide
b.
amino
c.
carbonyl
d.
carboxyl
Hint
2.
Large biological molecules that are nonpolar belong to a class of molecules called _________.
a.
lipids
b.
proteins
c.
carbohydrates
d.
enzymes
Hint
3.
________________ are the building blocks of lipids.
a.
Polysaccharides
b.
Polymers
c.
Carbohydrates
d.
Fatty acids
Hint
4.
____________ is the common name given to a triglyceride that is a solid at room temperature.
a.
An oil
b.
A fat
c.
A wax
d.
Cholesterol
Hint
5.
What is the process in which triglycerides react with a strong, inorganic base such as sodium hydroxide to produce carboxylate salts and glycerol?
a.
lipogenesis
b.
saponification
c.
peptide linkage
d.
polymerization
Hint
6.
Steroids are a type of lipid. What is the structure of a steroid?
a.
The basic structure is composed of four rings.
b.
The structure has many fatty acids.
c.
The structure uses peptide bonds.
d.
The structure is composed entirely of water—soluble molecules.
Hint
