객관식
Which set of molecules correctly describes the three components of adenosine triphosphate (ATP)?
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1. Introduction to Biochemistry
Nucleic Acids
객관식
In the context of nucleic acids, ATP (adenosine triphosphate) is best classified as which type of macromolecule building block?
A
A polypeptide (protein) monomer composed of amino acids
B
A triglyceride (lipid) composed of glycerol and three fatty acids
C
A nucleotide (a nucleoside with three phosphate groups)
D
A polysaccharide monomer (monosaccharide) used to build glycogen
검증된 단계별 안내1
Recall the four major classes of biological macromolecules: proteins, lipids, nucleic acids, and carbohydrates.
Identify the structural components of ATP: it consists of an adenine base, a ribose sugar, and three phosphate groups.
Recognize that a nucleotide is defined as a nucleoside (a nitrogenous base plus a sugar) attached to one or more phosphate groups.
Understand that ATP fits the definition of a nucleotide because it has a nitrogenous base (adenine), a sugar (ribose), and three phosphate groups.
Conclude that ATP is best classified as a nucleotide, which is the building block of nucleic acids, rather than a protein monomer, lipid, or carbohydrate monomer.
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