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CP10: Respiration Rates

Investigate the rate of respiration using a respirometer

Required PracticalEdexcelA-Level

🔬 Equipment Required

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

🦺 Safety Precautions

  • Soda lime is corrosive - do not touch
  • Handle organisms carefully
  • Wash hands after practical

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About CP10: Respiration Rates

CP10: Respiration Rates is a required practical for Edexcel A-Level Biology. This practical investigate the rate of respiration 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 Edexcel A-Level Biology exams and can be worth significant marks. Practice with our AI-generated questions to master this practical.

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