BIOLOGICAL BASES OF BEHAVIOR
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are eventually replaced in the receptor site until another action potential happens.
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They are broken down by enzymes or reabsorbed by the terminal buttons.
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They are absorbed into the bloodstream
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They continue to flow through the next neuron.
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Detailed explanation-1: -Neurotransmitters: Fade away (a process called diffusion). Are reabsorbed and reused by the nerve cell that released it (a process called reuptake). Are broken down by enzymes within the synapse so it can’t be recognized or bind to the receptor cell (a process called degradation).
Detailed explanation-2: -Once they have been released and have bound to postsynaptic receptors, neurotransmitter molecules are immediately deactivated by enzymes in the synaptic cleft; they are also taken up by receptors in the presynaptic membrane and recycled.
Detailed explanation-3: -GABA and glycine action is terminated by reuptake by sodium co-transporters into either glial cells or back into the presynaptic terminal. In both locations, the neurotransmitters can be broken down by enzymes, whereas in the presynaptic terminal, the transmitters can be repackaged in synaptic vesicles.
Detailed explanation-4: -What happens to the neurotransmitters after they are released into the synapse? They are broken down by enzymes or reabsorbed by the terminal buttons.