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Multiple Choice
Which components are part of an ATP molecule?
A
Adenine, ribose, and three phosphate groups
B
Adenine, deoxyribose, and two phosphate groups
C
Guanine, ribose, and three phosphate groups
D
Cytosine, ribose, and two phosphate groups
Verified step by step guidance
1
Understand the structure of ATP (adenosine triphosphate), which is a nucleotide consisting of three main components: a nitrogenous base, a sugar, and phosphate groups.
Identify the nitrogenous base in ATP. ATP contains adenine, which is a purine base. This distinguishes it from other nucleotides that may contain guanine or cytosine.
Recognize the sugar component in ATP. ATP contains ribose, a five-carbon sugar, which is typical for RNA nucleotides. This differentiates it from deoxyribose, which is found in DNA nucleotides.
Determine the number of phosphate groups in ATP. ATP is characterized by having three phosphate groups, which are linked in a chain. This is a key feature that provides energy through hydrolysis.
Combine these components to identify the correct structure of ATP: adenine, ribose, and three phosphate groups. This combination is unique to ATP and is essential for its role in energy transfer within cells.