Which reactions are defined as exergonic?
A) Reactions that release energy and occur spontaneously
B) Reactions that produce chemical energy without the consumption of reactants
C) Reactions that always involve the synthesis of new compounds
D) Reactions that require heat to proceed
E) Reactions that occur only in the presence of light
IMAT 2025 · Question 30
Q30 - ATP and bioenergetics
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The correct answer is A) Reactions that release energy and occur spontaneously.
Exergonic reactions release energy and are spontaneous (ΔG < 0).
Spontaneous doesn't mean fast, though. Many of them still need an enzyme to get past the activation energy. Reactions that need an energy input are endergonic.
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