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6. What happens if the impulse does not reach the threshold?

  • It goes back to resting potential
  • A action potential is created
  • The PD goes below resting potential

7. What happens at repolerisation?

  • Calcium channels open
  • Diffusion
  • Potassium channels open
  • Sodium channels open

8. What is the PD at repolerisation?

  • 20mv
  • 40mv
  • -45mv
  • -70mv

9. What happens at hyperpolerisation?

  • Another action potential occurs
  • The PD goes below resting potential
  • The axon returns to resting potential

10. What happens to the PD at hyperpolerisation?

  • The PD stays the same as resting potential
  • The PD goes below resting potential
  • The PD goes above resting potential

11. How is the PD affected at repolerisation?

  • The PD decreases
  • The PD increases
  • The PD stays the same