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PAG 1: Microscopy

Use a light microscope to make observations and drawings of biological specimens

Required PracticalOCRGCSE

๐Ÿ”ฌ Equipment Required

  • Light microscope
  • Prepared slides
  • Blank slides and cover slips
  • Dropping pipettes
  • Iodine solution
  • Methylene blue stain
  • Forceps
  • Mounted needle
  • Filter paper
  • Stage micrometer (for calibration)

๐Ÿฆบ Safety Precautions

  • Handle glass slides carefully
  • Iodine can stain skin and clothing
  • Methylene blue is an irritant
  • Take care with sharp instruments
  • Report broken glass immediately

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About PAG 1: Microscopy

PAG 1: Microscopy is a required practical for OCR GCSE Biology. This practical use a light microscope to make observations and drawings of biological specimens

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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