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  1. Summary notes, revision videos and past exam questions by topic for CAIE IGCSE Biology Topic 5 - Enzymes.

  2. 2019年4月5日 · An enzyme in potato cells causes oxygen to be produced from hydrogen peroxide. Cubes of potato were incubated with hydrogen peroxide at different temperatures. The numbers of bubbles of oxygen released per minute were counted at each temperature.

  3. Past papers, examiner reports and specimen papers You can download one or more papers for a previous session. Please note that these papers may not reflect the content of the current syllabus.

  4. 2023年3月24日 · CAIE A Levels, O Levels and IGCSE 2023 Past Papers of March and May /June are updated 24/03/2023 : CAIE A Levels have new 2022 Updated Topical Past Papers with Answers.

  5. Revise. Topic Specification. Enzymes Revision. Enzymes are important proteins that control chemical reactions in all living organisms. Each enzyme is specific to an individual reaction and requires certain conditions to function efficiently. What are Enzymes?

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  7. 0610 Biology Past Papers 2010 –2016 –Enzymes Paper 1 (Paper 2 for Extended Candidates – Revised 2016 Syllabus) Index

  8. In the given graph showing the effect of pH on an enzyme-controlled reaction, it is observed that the enzyme is not active at pH 1 and pH 13. Enzymes are biological catalysts that facilitate and regulate chemical reactions in living organisms.