When a signal is released from one neuron and it moves to another neuron or to a muscle cell,the signal binds to a
A)ligand-gated ion channel.
B)voltage-gated ion channel.
C)nuclear receptor.
D)enzyme-linked receptor.
E)G-protein coupled receptor.

Question

Quizplus · Accepted Answer

Ligand-gated ion channels are protein channels that open in response to the binding of a specific neurotransmitter released from a presynaptic neuron, allowing ions to flow across the membrane and electrically signal the postsynaptic neuron or muscle cell. This is the mechanism by which signals are transmitted across a synapse.

When a Signal Is Released from One Neuron and It