Learning objective

Explain how changes in pH impact enzyme activity, particularly regarding shape, fit, and denaturation.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

Cambridge IGCSE Combined ScienceEnzymesSupplement content

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Quick explanation

This point belongs to Enzymes, especially Enzymes outcomes.
You need to be able to explain how changes in pH impact enzyme activity, particularly regarding shape, fit, and denaturation.
The key ideas to know are Explain and Discuss.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

ExplainDiscuss

Why it matters

This objective helps connect Enzymes outcomes to exam-style questions, flashcards, and revision notes for Enzymes.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 4Theory (Extended)3 marks

Description

Enzymes have specific pH ranges where they function optimally. Deviations from this range can lead to changes in enzyme shape and activity.

a
Explain how changes in pH can affect enzyme activity.
Your answer
Aim for approximately 3 distinct marking points.
[3]

Revision notestopic notes

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