All of the following increase neurotransmitter concentrations in the synaptic cleft except:
A) blocking membrane transporters.
B) inhibiting catabolic enzymes.
C) blocking receptors on the postsynaptic terminal.
D) increasing calcium influx.

Question

Quizplus · Accepted Answer

Blocking receptors on the postsynaptic terminal would decrease neurotransmitter activity by preventing the neurotransmitter from binding to and activating the receptor. A, B, and D would all increase neurotransmitter concentration in the synaptic cleft. Blocking membrane transporters would prevent the reuptake of neurotransmitters into the presynaptic terminal, inhibiting catabolic enzymes would prevent the breakdown of neurotransmitters, and increasing calcium influx would increase neurotransmitter release from the presynaptic terminal.

All of the Following Increase Neurotransmitter Concentrations in the Synaptic