Question

Which of the following is NOT a way that neurotransmitter effect can be regulated in a normal physiological system?

1) Reuptake of neurotransmitter into the presynaptic neuron
2) Enzymatic degradation of neurotransmitter in the synaptic cleft
3) Binding of neurotransmitter to postsynaptic receptors
4) Release of neurotransmitter from the postsynaptic neuron

Answer 1

The regulation of neurotransmitter effects does not include the release of neurotransmitters from the postsynaptic neuron; they are actually released from the presynaptic neuron. Thus, the answer to the question is option 4.

Step-by-step explanation:

The student's question pertains to how neurotransmitter effects are regulated within a normal physiological system. Neurotransmitters are crucial for neuron-to-neuron communication and are managed through several processes:

• Reuptake of neurotransmitter into the presynaptic neuron.
• Enzymatic degradation of neurotransmitter in the synaptic cleft.
• Binding of neurotransmitter to postsynaptic receptors.

Among the options given, the only choice that does not represent a way to regulate neurotransmitter effects is the release of neurotransmitter from the postsynaptic neuron. Neurotransmitters are released from the presynaptic neuron, not the postsynaptic neuron. Therefore, the correct option is '4) Release of neurotransmitter from the postsynaptic neuron.'