In order for a nerve impulse to travel from one neuron to another, a chemical called a neurotransmitter is used to cross a synaptic cleft and carry the impulse to the next cell. Which of the following is the correct physiological means of releasing neurotransmitters into the synaptic cleft?

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    Protein pumps located in the cell membrane pump the neurotransmitter into the synaptic cleft.
    Membrane-bound enzymes quickly construct neurotransmitters from the raw materials located in the synaptic cleft.
    Neurotransmitters that are bound to the cell membrane are enzymatically cut off of the membrane into the synaptic cleft.
    Synaptic vesicles fuse with the cell membrane and release the neurotransmitter into the synaptic cleft.
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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Synaptic vesicles fuse with the cell membrane and release the neurotransmitter into the synaptic cleft.
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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