Multiple Choice
In the context of nucleic acids, ATP (adenosine triphosphate) is best classified as which type of macromolecule or related biomolecule?
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1. Introduction to Biochemistry
Nucleic Acids
Multiple Choice
In the context of nucleic acids, ATP (adenosine triphosphate) is best classified as which type of macromolecule or biomolecule?
A
A triacylglycerol
B
A polysaccharide
C
A nucleotide (a nucleoside triphosphate)
D
A polypeptide
Verified step by step guidance1
Recall the main classes of biological macromolecules: carbohydrates (polysaccharides), lipids (such as triacylglycerols), proteins (polypeptides), and nucleic acids (nucleotides and nucleosides).
Understand that ATP (adenosine triphosphate) consists of a nitrogenous base (adenine), a sugar (ribose), and three phosphate groups, which together form a nucleotide structure.
Recognize that nucleotides are the building blocks of nucleic acids like DNA and RNA, and ATP is a specific nucleotide known as a nucleoside triphosphate due to its three phosphate groups.
Eliminate options that do not fit ATP's structure: triacylglycerols are lipids made of glycerol and fatty acids, polysaccharides are long chains of sugars, and polypeptides are chains of amino acids.
Conclude that ATP is best classified as a nucleotide (a nucleoside triphosphate), which is a type of nucleic acid-related biomolecule.
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