Multiple Choice
In the context of nucleic acids, what type of organic molecule is ATP (adenosine triphosphate)?
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1. Introduction to Biochemistry
Nucleic Acids
Multiple Choice
In the context of nucleic acids, ATP and ADP are best classified as which type of biomolecule?
A
Triglycerides (neutral storage lipids)
B
Polynucleotides (long-chain nucleic acid polymers)
C
Polysaccharides (carbohydrate polymers)
D
Nucleotides (phosphorylated derivatives of adenosine)
Verified step by step guidance1
Identify the basic building blocks of nucleic acids, which are nucleotides composed of a nitrogenous base, a sugar, and one or more phosphate groups.
Recognize that ATP (adenosine triphosphate) and ADP (adenosine diphosphate) are molecules containing the adenine base, ribose sugar, and multiple phosphate groups, fitting the nucleotide structure.
Understand that triglycerides are lipids made of glycerol and fatty acids, which is structurally different from ATP and ADP.
Recall that polynucleotides are long chains of nucleotides linked together, whereas ATP and ADP are individual nucleotide molecules, not polymers.
Conclude that ATP and ADP are best classified as nucleotides, specifically phosphorylated derivatives of adenosine, rather than triglycerides, polynucleotides, or polysaccharides.
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