Multiple Choice
In the context of nucleic acids, ATP (adenosine triphosphate) is best classified as which type of biological molecule?
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1. Introduction to Biochemistry
Nucleic Acids
Multiple Choice
ATP (adenosine triphosphate) is best classified as which type of biomolecule?
A
A nucleotide
B
A polysaccharide
C
A polypeptide
D
A triacylglycerol
Verified step by step guidance1
Recall the four main classes of biomolecules: carbohydrates (including polysaccharides), proteins (polypeptides), lipids (such as triacylglycerols), and nucleotides/nucleic acids.
Understand that ATP (adenosine triphosphate) consists of an adenine base, a ribose sugar, and three phosphate groups, which are characteristic components of nucleotides.
Recognize that polysaccharides are long chains of sugar molecules, polypeptides are chains of amino acids, and triacylglycerols are composed of glycerol and fatty acids, none of which match ATP's structure.
Identify that because ATP contains a nitrogenous base, a sugar, and phosphate groups, it fits the definition of a nucleotide.
Conclude that ATP is best classified as a nucleotide based on its molecular components and structure.
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