객관식
What are the three components of an molecule?
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33. The Organic Chemistry of Metabolic Pathways
ATP and Energy
객관식
Which part of the molecule breaks free of the rest when an molecule is used for energy?
A
Hydroxyl group
B
Phosphate group
C
Ribose sugar
D
Adenine base
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검증된 단계별 안내1
Understand the structure of an ATP molecule: ATP (adenosine triphosphate) consists of three main components: an adenine base, a ribose sugar, and three phosphate groups.
Recognize the role of ATP in energy transfer: ATP is known as the energy currency of the cell. It releases energy when it is hydrolyzed.
Identify the part of ATP involved in energy release: The energy is released when the bond between the second and third phosphate groups is broken, converting ATP to ADP (adenosine diphosphate) and an inorganic phosphate (Pi).
Focus on the phosphate groups: The terminal phosphate group is the one that breaks free during the hydrolysis of ATP, which is the key step in energy release.
Conclude that the phosphate group is the part of the ATP molecule that breaks free when ATP is used for energy, as it is involved in the hydrolysis reaction that releases energy.
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