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C2.2.15 (HL)—Pain perception Topic Practice

C2.2.15 (HL)—Pain perception Topic Practice
IB Biology syllabusBiology SL/HLFirst assessment 2025

Students practise connecting TRP ion channels in free nerve endings to specific pain triggers including heat, acid, capsaicin, and tissue damage.

How this is tested

  • predict how capsaicin exposure activates TRP channels to generate pain signals in sensory neurones
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