Multiple Choice
Which of the following is the monomeric unit that makes up proteins?
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3. Amino Acids
Amino Acid Groups
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Which class of macromolecule does ATP (adenosine triphosphate) belong to?
A
Nucleic acids
B
Lipids
C
Proteins
D
Carbohydrates
Verified step by step guidance1
Understand the structure of ATP (adenosine triphosphate): ATP consists of an adenine base, a ribose sugar, and three phosphate groups. This structure is key to identifying its macromolecular class.
Recall the definition of nucleic acids: Nucleic acids are macromolecules composed of nucleotide monomers, which include a nitrogenous base, a sugar, and phosphate groups. ATP fits this description as it is a nucleotide.
Differentiate ATP from other macromolecule classes: Lipids are primarily hydrophobic molecules, proteins are composed of amino acids, and carbohydrates are composed of sugar units. ATP does not fit these categories.
Recognize ATP's role in cellular processes: ATP is a nucleotide that plays a critical role in energy transfer within cells, which is consistent with its classification as part of the nucleic acid family.
Conclude that ATP belongs to the nucleic acid class based on its structure and function, as it is a nucleotide derivative.
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