O-LevelBiologyEnzymes5090/11 · May/June 2016 · Q41 Mark
X and Y are the reactants in a chemical reaction for which E is the enzyme. The product is Z. The first three stages in the reaction are shown. X + E → XE Y + XE → XYE XYE → ZE What is the fourth, and final, stage of this reaction?
AX + Y + E → Z
BX + YE → Z
CY + ZE → YZ + E
DZE → Z + E
✓ Correct answer
D: ZE → Z + E
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Enzymes and see which topics are most likely to come up next.
Sign up free →