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Multiple Choice
What is it about the structure of ATP that contributes to its ability to act as an energy currency?
A
The ability to form hydrogen bonds with water molecules.
B
The presence of adenine, which is a high-energy nucleotide.
C
The presence of high-energy phosphate bonds that release energy upon hydrolysis.
D
The presence of a ribose sugar that stabilizes the molecule.
Verified step by step guidance
1
Identify the key structural components of ATP: adenine, ribose sugar, and three phosphate groups.
Understand that the energy currency role of ATP is primarily due to its phosphate groups, specifically the bonds between these phosphates.
Recognize that the bonds between the phosphate groups, known as phosphoanhydride bonds, are high-energy bonds.
Explain that when ATP undergoes hydrolysis, one of these phosphoanhydride bonds is broken, releasing energy that can be used by the cell.
Conclude that the presence of these high-energy phosphate bonds is what makes ATP an effective energy currency, as they release significant energy upon hydrolysis.