Question

n5 Match the ion channels to the functions. answered out of 5 What causes exocytose at the Choose... axon terminal? g question What causes hyperpolarization Choose... in a resting neuron? What causes hyperpolarization Choose Choose... following repolarization? What causes an excitatory graded potential? Choose... What action serves as a second messenger? Choose... Hair cells Speciale Slide 14 of 70 Er

Answer 1

The matches of the ion channel fictions are as follow

1:Excytose is due to influx of calcium ion When the membrane of axon terminals is artificially depolarized, an influx of Ca2+ ions into the neurons cause exocytose.

2 The opening of channels that let positive ions flow out of the cell (or negative ions flow in) can cause hyperpolarization.

3 Repolarization typically results from the movement of positively charged ions out of the cell. The repolarization phase of an action potential initially cause in hyperpolarization.

4 Graded potential caused by the influx of positively charged sodium ions into the intracellular fluid, decreasing the negativity of the charge inside the cell.

5 The primary effector action, which creates a signal that can diffuse within the cell. And this signal is called the secondary messengers.

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