Multiple Choice
In the context of nucleic acids, ATP consists of three main components. Which option correctly lists these components?
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1. Introduction to Biochemistry
Nucleic Acids
Multiple Choice
Which set correctly lists the three main components of an ATP molecule?
A
Guanine, ribose, and one phosphate group
B
Adenine, deoxyribose, and three phosphate groups
C
Adenine, ribose, and three phosphate groups
D
Uracil, ribose, and three phosphate groups
Verified step by step guidance1
Recall the structure of ATP (adenosine triphosphate), which is a nucleotide composed of three main parts: a nitrogenous base, a sugar, and phosphate groups.
Identify the nitrogenous base in ATP. ATP contains adenine, which is a purine base, not guanine or uracil.
Determine the sugar component. ATP contains ribose, a five-carbon sugar with a hydroxyl group on the 2' carbon, distinguishing it from deoxyribose which lacks this hydroxyl group.
Count the number of phosphate groups attached to the sugar. ATP has three phosphate groups linked in a chain, which is why it is called 'triphosphate'.
Combine these components to confirm that the correct set listing the three main components of ATP is adenine, ribose, and three phosphate groups.
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