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Multiple Choice
The breakdown of ATP to release its stored energy is called:
A
Dehydration synthesis
B
Oxidation
C
Hydrolysis
D
Phosphorylation
Verified step by step guidance
1
Understand the process of ATP breakdown: ATP (adenosine triphosphate) is a molecule that stores energy in its high-energy phosphate bonds. When energy is needed, ATP is broken down into ADP (adenosine diphosphate) and an inorganic phosphate (Pi), releasing energy.
Identify the type of reaction involved: The breakdown of ATP involves the addition of water to break the bond between the terminal phosphate group and the rest of the molecule. This type of reaction is called hydrolysis.
Clarify the term 'hydrolysis': Hydrolysis is a chemical reaction where a water molecule is used to break a bond in a larger molecule, splitting it into smaller components. In the case of ATP, water helps break the bond between the second and third phosphate groups.
Differentiate from other terms: Dehydration synthesis is the opposite of hydrolysis, where water is removed to form a bond. Oxidation involves the loss of electrons, and phosphorylation refers to the addition of a phosphate group to a molecule, not the breakdown of ATP.
Conclude that the correct answer is hydrolysis, as it specifically describes the process of breaking down ATP with the addition of water to release energy.