A-LevelBiologyEnzymes9700/12 · Oct/Nov 2025 · Q131 Mark
What is the effect of an enzyme in an enzyme-catalysed reaction?
Adecreases the activation energy and decreases the energy yield
Bdecreases the activation energy and has no effect on the energy yield
Cincreases the activation energy and increases the energy yield
Ddecreases the activation energy and increases the energy yield
✓ Correct answer
B: decreases the activation energy and has no effect on the energy yield
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