nerv impulses

Question 1

1-3

Answer 1

1. voltqge gated sodium ion channels open
2. sodoun ipons diffuse into the cell faccikitwted diffusion
3. depolarisation

Question 2

4-6

Answer 2

4. voltage gated sodium ion channels vlose and ghe volgabe gated potassium ion channels open
5. potassium ipons diffuse out of ghe cell
6. repolarisarion

Question 3

7

Answer 3

sodoum potassium pump reestablushes resting potential bg actuvely pumping sofoum ipons out and potassium ioins in

Question 4

6-8

Answer 4

6. neurotransmitters diffise across the synapse
7. bind to receptors on ghe postsynaptic membrane
8. ion chemnsnooen

Question 5

9-10

Answer 5

9. if enough ipns ebyer the postsynaptic cell it henerates action potential
10. neurotransmktter remived trom the synapse