After a Signal Has Been Transmitted to a Receiving Cell,neurotransmitters

question 1

Multiple Choice

After a signal has been transmitted to a receiving cell,neurotransmitters are rapidly removed from the synaptic cleft because

• A) if even one neurotransmitter escapes from the synaptic cleft,it will produce action potentials in other neurons.
• B) if neurotransmitters are not removed,they will enter the receiving cell and stimulate action potentials in organelle membranes.
• C) neurotransmitters that remain in the synaptic cleft continue to bind to receptors in the receiving cell,potentially initiating new action potentials.
• D) making neurotransmitters from scratch is energetically expensive,so the cell must recycle them.

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