Which of These Does Not Contribute to the Cessation of the Signal

question 12

Multiple Choice

Which of these does not contribute to the cessation of the signal in a synaptic transmission?

• A)Synaptic vesicles secrete neurotransmitter by exocytosis.
• B)Neurotransmitter escapes from the synapse into the nearby extracellular fluid.
• C)Neurotransmitters are no longer released.
• D)The synaptic knob reabsorbs some neurotransmitters by endocytosis.
• E)Enzymes in the postsynaptic cell break down some neurotransmitters.

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