Generation of action potential

What is the main function of the sodium-potassium pump during resting potential?

• Allow passive diffusion of Na⁺

• Actively transport Na⁺ in and K⁺ out

• Actively transport Na⁺ out and K⁺ in

• Generate action potential

Which ion moves into the axon during the depolarization phase?

• Potassium ion (K⁺)

• Sodium ion (Na⁺)

• Calcium ion (Ca²⁺)

• Chloride ion (Cl⁻)

Name phase shown in the diagram.

1.​ (a)  

2.​ (b)   ​

3. ​ (c)  

4. ​ (d)  

• Resting potential
• Repolarisation
• Depolarisation
• Hyperpolarisation

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