The effect of a particular neurotransmitter on postsynaptic neurons
A)is always either excitatory or inhibitory.
B)depends on the properties of the postsynaptic neuron.
C)may be modulated by the presence or absence of another neurotransmitter.
D)depends on the properties of the postsynaptic neuron and may be modulated by the presence or absence of another neurotransmitter.

Question

Quizplus · Accepted Answer

The effect of a particular neurotransmitter on postsynaptic neurons depends on the properties of the postsynaptic neuron, such as the receptor subtypes present. Additionally, the effect may be modulated by the presence or absence of another neurotransmitter, such as an agonist or antagonist of a receptor subtype. Therefore, option D, which states that the effect depends on the properties of the postsynaptic neuron and may be modulated by the presence or absence of another neurotransmitter, is the best choice.

The Effect of a Particular Neurotransmitter on Postsynaptic Neurons