Biology A (Salters-Nuffield) A-Level
Hyperpolarisation
What Hyperpolarisation means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Hyperpolarisation
Check what you remember
Read the wording for your board, then hide it and explain Hyperpolarisation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The change in a rod cell when light closes cation channels and Na⁺ entry decreases.
Topics that use Hyperpolarisation
- Topic 8: Grey Matter (Pearson Edexcel A-Level)
Related terms
- Animal experiments
- Animal models in neuroscience research
- Antagonistic muscle action
- Autonomic control of the pupil
- Benefits
- Cell signalling
- Cerebral hemispheres
- Co-ordination
Using Hyperpolarisation in the exam
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