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RP9: Respiration using Respirometer

Investigation into the rate of respiration of organisms using a respirometer

Required PracticalAQAA-Level

๐Ÿ”ฌ Equipment Required

  • Respirometer
  • Germinating seeds or small invertebrates
  • Soda lime or potassium hydroxide
  • Cotton wool
  • Water bath
  • Thermometer
  • Stopwatch
  • Syringe
  • Manometer fluid

๐Ÿฆบ Safety Precautions

  • Soda lime/KOH is corrosive - do not touch
  • Handle organisms carefully
  • Ensure apparatus is sealed properly
  • Wash hands after handling organisms

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About RP9: Respiration using Respirometer

RP9: Respiration using Respirometer is a required practical for AQA A-Level Biology. This practical investigation into the rate of respiration of organisms using a respirometer

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 AQA A-Level Biology exams and can be worth significant marks. Practice with our AI-generated questions to master this practical.

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