Biology A-Level
Local versus long-distance signalling
What Local versus long-distance signalling means in Biology A-Level, as defined for OCR.
Definition of Local versus long-distance signalling
Check what you remember
Read the wording for your board, then hide it and explain Local versus long-distance signalling in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Signalling can be local, for example a neurotransmitter diffusing across a synapse, or long-distance, a hormone carried in the bloodstream.
Topics that use Local versus long-distance signalling
- Communication and homeostasis (OCR A-Level)
Related terms
- cell specialisation
- Negative feedback pathway
- Nervous and endocrine coordination
- Optimal conditions for cell function
- Surface area to volume ratio and diffusion limits
- Target cell response
- Thermoregulation in ectotherms
- Thermoregulation in endotherms
Using Local versus long-distance signalling in the exam
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