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38. An action potential causes the release of neurotransmitters by a. blocking potassium pores in the membrane b. opening chl

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The correct option is (d) i.e opening calcium pores in the membrane. The reason being is that the action potential is produced by specific type of channels i.e voltage gated channel which are firmly fixed in the plasma membrane of the cell. When action potential reaches the axon terminal that results in the activation of the calcium dependent voltage which means the opening of calcium pores in the membrane that results in the entry of calcium ions into the axon terminal and these ions communicate with the vesicles containing neurotransmitters and amalgamate them with the plasma membrane results in the release of neurotransmitters. Neurotransmitters release would be reserved when blockage of calcium channels takes place.

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