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CAIE A-Level Biology 8.2.1 Red Blood Cells in O₂ and CO₂ Transport

Practise explaining oxyhaemoglobin formation, carbonic-anhydrase conversion of CO₂ and haemoglobin buffering while distinguishing haemoglobinic acid from carbaminohaemoglobin.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • connect reversible oxygen binding at haem Fe²⁺ with oxyhaemoglobin formation
  • show carbonic anhydrase catalysing carbon dioxide and water to carbonic acid
  • distinguish haemoglobinic acid from carbaminohaemoglobin and their formation

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