IB skill practice

Analyse enzyme kinetics and inhibition

Paper 1, Paper 2 5 marks Difficulty 5

Compare competitive inhibition

An enzyme investigation in a advanced cell biology class shows inhibition reduced when substrate concentration is greatly increased. Explain why this supports competitive inhibition. Use the diagram labels, HL model, or quantitative image evidence before answering. Enter the answer and choose the interpretation that best matches the HL biological evidence.

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