Difficulty: Easy
Correct Answer: transfer large amounts of free energy
Explanation:
Introduction / Context:
High-energy compounds are central to metabolism. They act as energy currency, coupling exergonic and endergonic processes. Recognizing their defining property is crucial for understanding bioenergetics.
Given Data / Assumptions:
Concept / Approach:
Such molecules transfer free energy to other molecules by group transfer reactions (e.g., phosphoryl transfer from ATP). The large negative ΔG of hydrolysis drives coupled reactions forward.
Step-by-Step Solution:
Verification / Alternative check:
Coupling ATP hydrolysis to unfavorable biosyntheses (e.g., aminoacyl-tRNA formation) exemplifies energy transfer.
Why Other Options Are Wrong:
Accept large energy: Vague and not the defining feature. Measure free energy: Measurement is an analytical concept, not molecular function. None: Incorrect since a correct description exists.
Common Pitfalls:
Misinterpreting “high-energy bond” as a store to be “accepted” rather than transferred in a chemical reaction.
Final Answer:
transfer large amounts of free energy
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