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Multiple Choice
Where is energy stored in an ATP molecule?
A
In the bonds between the phosphate groups
B
In the hydrogen bonds
C
In the ribose sugar
D
In the adenine base
Verified step by step guidance
1
Understand the structure of an ATP molecule: ATP (adenosine triphosphate) consists of an adenine base, a ribose sugar, and three phosphate groups.
Identify the key components of ATP: The adenine base and ribose sugar form adenosine, while the three phosphate groups are linked in a chain.
Focus on the phosphate groups: The bonds between these phosphate groups are known as phosphoanhydride bonds.
Recognize the significance of phosphoanhydride bonds: These bonds are high-energy bonds, meaning they store a significant amount of energy.
Conclude that the energy in an ATP molecule is primarily stored in the bonds between the phosphate groups, particularly the bond between the second and third phosphate group, which is often broken to release energy.