Chemistry: Matter and Change

Section 4: Nucleic Acids

Self Check Quizzes

1
If a molecule contains a 5-carbon sugar, the nitrogen base uracil, and can be used in protein synthesis, then the molecule is __________.

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A)DNA
B)RNA
C)thymine
D)cytosine
2
DNA is a molecule made of two long chains of nucleotides that are arranged in a distinctive, three-dimensional physical structure. What is this three-dimensional structure?
A)a spherical macromolecule
B)a double helix
C)a single helix
D)a pleated sheet
3
What sugar is used to make DNA?
A)ribose
B)ribulose
C)dextrose
D)deoxyribose
4
Nitrogen bases in DNA always pair in a specific way. What is the term used to describe this pairing?

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A)hydrogen base pairs
B)nitrogen base pairs
C)complementary base pairs
D)side-by-side base pairs
5
The ________ that makes up a nucleic acid is called a nucleotide.

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A)monomer
B)polymer
C)polypeptide
D)lipid
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