Question

2.1.2 quiz: protein structure, function, and synthesis
the image shows the parts of a nucleic acid monomer. which component of a nucleotide monomer is represented by #2 in the diagram?
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a. phosphate group
b. 5 - carbon sugar
c. nitrogen base
d. amino acid

Explanation:

A nucleotide monomer has three components: a phosphate group (1), a 5 - carbon sugar (2), and a nitrogen base (3). The structure labeled 2 is a pentagon - shaped molecule, which is characteristic of a 5 - carbon sugar. An amino acid (D) is not a part of a nucleotide. The phosphate group (A) is the circular structure with P, and the nitrogen base (C) is the hexagon - like structure with N.

Answer:

B. 5 - carbon sugar