객관식
In the context of nucleic acids, which type of biomolecule is ATP (adenosine triphosphate) most like in overall structure?
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1. Introduction to Biochemistry
Nucleic Acids
객관식
In the context of nucleic acids and cellular metabolism, ATP is classified as which of the following?
A
A deoxyribonucleotide triphosphate used primarily for DNA synthesis
B
A ribonucleotide triphosphate (a purine nucleoside triphosphate)
C
A nucleoside lacking phosphate groups
D
A pyrimidine nucleoside monophosphate
검증된 단계별 안내1
Step 1: Understand the structure of ATP (adenosine triphosphate). ATP consists of the nitrogenous base adenine, a ribose sugar, and three phosphate groups attached in a chain.
Step 2: Recognize that ATP contains a ribose sugar, not deoxyribose, which means it is a ribonucleotide rather than a deoxyribonucleotide.
Step 3: Identify the nitrogenous base in ATP, which is adenine, a purine base (purines include adenine and guanine).
Step 4: Note that ATP has three phosphate groups, making it a triphosphate nucleotide.
Step 5: Combine these facts to classify ATP as a ribonucleotide triphosphate with a purine base, commonly used in cellular metabolism and as an energy currency.
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