Multiple Choice
In the structure of DNA, what is the name of the pentose sugar found in the backbone?
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7. DNA and Chromosome Structure
DNA Structure
Multiple Choice
In the context of DNA structure, DNA is classified as which type of biological macromolecule?
A
Nucleic acid
B
Triglyceride (lipid)
C
Polysaccharide (carbohydrate)
D
Protein
Verified step by step guidance1
Recall the four major types of biological macromolecules: carbohydrates, lipids, proteins, and nucleic acids.
Understand that DNA (deoxyribonucleic acid) is composed of nucleotide monomers, each containing a sugar, phosphate group, and nitrogenous base.
Recognize that molecules made up of nucleotides are classified as nucleic acids.
Compare the structure of DNA to other macromolecules: triglycerides are lipids made of glycerol and fatty acids; polysaccharides are carbohydrates made of sugar monomers; proteins are made of amino acids.
Conclude that since DNA is made of nucleotides, it belongs to the nucleic acid category.
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