Flashcards
Action Potential
Cards in this deck (11)
- 1A stimulus is received causing......some sodium voltage gated channels to open.
- 2Sodium ions......diffuse into the axon through these channels.
- 3Sodium ions are......positively charged.
- 4They reverse......the potential difference across the membrane.
- 5As the sodium ions diffuse into the axon......more sodium channels open.
- 6The membrane is depolarised and now...... the voltage-gated sodium ion channels close.
- 7The voltage gated potassium ion channels......open and potassium ions diffuse out of the axon.
- 8The axon is......repolarised.
- 9The inside of the axon becomes more negative than usual......which is known as hyperpolarisation.
- 10The potassium ion channels close and the sodium-potassium pumps......cause sodium ions to be pumped out and potassium ions in.
- 11The......resting potential is re-established.
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- A-Levels Biology Flashcards on Action Potential, created by Elizabeth Westmacott on 12/06/2013.
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- Elizabeth Westmacott
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