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CAIE A-Level Biology 16.3.2 Inducible and Repressible Enzymes

Practise distinguishing enzymes induced by a substrate from enzymes repressed by an end product, and explain how regulated synthesis conserves cellular resources.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • explain inducible-enzyme synthesis when substrate binding inactivates a repressor
  • explain repressible-enzyme shutdown when an end product activates its repressor

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