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Nucleotide structure

  • HESI A2
  • Biology
  • Select all that apply
  • Difficulty 3 of 5

Question

Which components should a student include when constructing a nucleotide model? Select all that apply.

  1. A sugar✓ Correct

    A sugar is part of a nucleotide.

  2. A phosphate group✓ Correct

    Phosphate is a nucleotide component.

  3. A nitrogen-containing base✓ Correct

    A base is included in each nucleotide.

  4. An amino acid✗ Incorrect

    An amino acid is not one of the listed nucleotide components.

  5. A lipid droplet✗ Incorrect

    A lipid droplet is not a nucleotide component.

Answer

A. A sugar · B. A phosphate group · C. A nitrogen-containing base

Rationale

A nucleotide has a sugar, a phosphate group, and a nitrogen-containing base. These components form a building block of nucleic acids.

RememberA nucleotide has a sugar, phosphate, and base.

Sources

  • Talking Glossary of National Human Genome Research Institute (NIH) · License: US government work (public domain) · Retrieved · Page 18
  • ​Nucleotide National Human Genome Research Institute (NIH) · License: US government work (public domain) · Retrieved · Definition

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