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Multiple Choice
Where is the energy stored in an ATP molecule?
A
In the adenine base
B
In the phosphate bonds
C
In the hydrogen bonds
D
In the ribose sugar
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.
Recognize the role of phosphate groups: The three phosphate groups are linked together by high-energy bonds known as phosphoanhydride bonds.
Identify the location of energy storage: The energy in an ATP molecule is primarily stored in the bonds between the phosphate groups, specifically the bond between the second and third phosphate groups.
Learn about the energy release process: When ATP is hydrolyzed to ADP (adenosine diphosphate) and an inorganic phosphate, energy is released due to the breaking of the phosphoanhydride bond.
Understand the significance of ATP: ATP is often referred to as the 'energy currency' of the cell because it provides energy for various biological processes when its phosphate bonds are broken.