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PAG 2: Enzyme Investigation

Investigate the effect of a factor (e.g., pH, temperature) on enzyme activity

Required PracticalOCRGCSE

๐Ÿ”ฌ Equipment Required

  • Test tubes and rack
  • Water baths at different temperatures
  • Spotting tile
  • Dropping pipettes
  • Amylase or other enzyme
  • Starch solution
  • Buffer solutions (various pH)
  • Iodine solution
  • Stopwatch
  • Thermometer

๐Ÿฆบ Safety Precautions

  • Wear safety goggles
  • Take care with hot water baths
  • Some buffer solutions are irritants
  • Wash hands after handling enzymes
  • Iodine can stain

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About PAG 2: Enzyme Investigation

PAG 2: Enzyme Investigation is a required practical for OCR GCSE Biology. This practical investigate the effect of a factor (e.g., ph, temperature) on enzyme activity

Students are expected to understand the method, identify and control variables, use appropriate equipment, analyse results, draw graphs, identify sources of error, suggest improvements, and consider safety precautions.

Questions on required practicals frequently appear in OCR GCSE Biology exams and can be worth significant marks. Practice with our AI-generated questions to master this practical.

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