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IB Biology C1.1.6 Molecular motion

IB Biology C1.1.6 Molecular motion
IB Biology syllabusBiology SL/HLFirst assessment 2025

Practise linking enzyme action to molecular collisions, active sites and substrate binding in concise multiple-choice questions.

How this is tested

  • explain how collisions between substrate molecules and active sites allow enzyme action
  • distinguish valid statements about active sites from incorrect claims about broad binding
  • apply one-step reasoning to enzyme multiple-choice questions about substrate fit
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