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CAIE A-Level Biology 12.2.14 Respirometer Investigations

Practise testing temperature effects with a respirometer by standardising organism mass and acclimation, absorbing CO₂ and converting displacement to oxygen uptake rate.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • standardise organism mass and acclimate apparatus at each water-bath temperature
  • absorb carbon dioxide and convert capillary displacement into oxygen uptake rate
  • explain temperature trends through kinetic energy and enzyme–substrate collisions

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