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Section 3: Lipids

Lipids

1.

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What functional group do fatty acids and amino acids have in common?
A)amide
B)amino
C)carbonyl
D)carboxyl
2.
Large biological molecules that are nonpolar belong to a class of molecules called _________.
A)lipids
B)proteins
C)carbohydrates
D)enzymes
3.
________________ are the building blocks of lipids.
A)Polysaccharides
B)Polymers
C)Carbohydrates
D)Fatty acids
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
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
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.
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