Biology A-Level
shared transmission mechanism
What shared transmission mechanism means in Biology A-Level, as defined for AQA.
Definition of shared transmission mechanism
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Reference: AQA
An action potential opens calcium ion channels, vesicles release acetylcholine by exocytosis, it diffuses across a cleft and binds to receptors that open sodium ion channels, and acetylcholinesterase hydrolyses it afterwards.
Topics that use shared transmission mechanism
- Synaptic transmission (A-level only) (AQA A-Level)
Related terms
- acetylcholinesterase inhibition
- agonists and antagonists
- excitatory only at the neuromuscular junction
- Inhibitory synapses and hyperpolarisation
- motor end plate
- postsynaptic receptors
- stating the direction of change
- summation not needed
Using shared transmission mechanism in the exam
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