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C3.1.6—Input through sensory neurons

Input through sensory neurons links named stimuli, coordinating structures and effectors so body systems or plant tissues produce an integrated biological response.

Syllabus
First assessment 2025
Objective
C3.1.6
Level
HL

Concept essentials

  • Input through sensory neurons depends on linking the stimulus to the coordinating structure or signal.
  • The pathway for input through sensory neurons must keep information flow and response direction clear.
  • Named tissues, hormones, neurons or effectors give input through sensory neurons its biological specificity.
  • Evidence about input through sensory neurons is strongest when structure, mechanism and outcome are connected.
ConceptIB Biology HL