generator potential
What generator potential means in Biology A-Level, as defined for AQA, OCR.
Definitions of generator potential
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Reference: AQA
The local depolarisation produced, which is graded: the greater the pressure, the more channels are deformed, the more sodium ions enter and the larger it is.
A potential produced when the stimulus changes membrane permeability so ions such as Na⁺ move across the membrane.
The local depolarisation produced when sodium ions enter and the membrane depolarises, and it is graded.
Topics that use generator potential
- Receptors (A-level only) (AQA A-Level)
- Neuronal communication (OCR A-Level)
Related terms
- transduction
- All-or-nothing law and impulse frequency
- Calcium-triggered exocytosis
- colour vision
- deformation
- depolarisation
- Excitatory and inhibitory postsynaptic effects
- receptor specificity
Using generator potential in the exam
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