Excitatory neurotransmitters are most likely to:
A) increase the speed of impulse conduction.
B) make the cell membrane impermeable.
C) initiate an action potential.
D) make the resting potential more negative.

Question

Quizplus · Accepted Answer

Excitatory neurotransmitters bind to receptors on the postsynaptic membrane, which can initiate an action potential in the receiving neuron. This can lead to the generation and propagation of nerve impulses. Choice A is incorrect because the speed of impulse conduction is more related to myelination of the neuron rather than neurotransmitters. Choice B is incorrect because neurotransmitters do not affect the permeability of the cell membrane. Choice D is incorrect because an increase in negative charge would make the cell more resistant to firing, as it would move further away from threshold.

Excitatory Neurotransmitters Are Most Likely To