Apentix/AP Biology/Unit 3: Cellular Energetics/Question
AP Biologymediummcq1 pt

Which statement correctly distinguishes what an enzyme changes from what it does not change?

A.An enzyme lowers activation energy without changing ΔG
B.An enzyme changes ΔG so an endergonic reaction becomes exergonic
C.An enzyme changes equilibrium so products become thermodynamically favored
D.An enzyme raises local temperature to speed molecular collisions

Explanation

Core Concept

Enzymes lower activation energy by providing an alternative reaction pathway, which changes reaction rate. They do not change the overall ΔG or equilibrium constant determined by reactants and products.

Correct Answer

AAn enzyme lowers activation energy without changing ΔG

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