Botulism toxin inhibits the potentiation of nerve impulses by interfering with what aspect of acetylcholine signaling?
A) prevents calcium channel opening, thus preventing the influx of calcium needed to release acetylcholine
B) prevents acetylcholine vesicles from fusing with the presynaptic neuronal membrane
C) acts as an acetylcholinesterase to degrade acetylcholine in the synaptic cleft before it can bind to receptors on the postsynaptic neuron
D) binds to receptors on the postsynaptic neuron with very high affinity, preventing acetylcholine from binding
E) none of the above

Question

Quizplus · Accepted Answer

Botulism toxin inhibits the release of acetylcholine by preventing the vesicles containing acetylcholine from fusing with the presynaptic neuronal membrane, thus interfering with the neurotransmitter's ability to signal the next neuron.

Botulism Toxin Inhibits the Potentiation of Nerve Impulses by Interfering