At a synapse, the neuron that responds to the neurotransmitter is the ______ neuron.

• A. motor
• B. presynaptic
• C. postsynaptic
• D. sensory

Answer: (C)

Verified step by step guidance

1. Understand the concept of a synapse: A synapse is the junction between two neurons where communication occurs. It involves the release of neurotransmitters from one neuron and their reception by another.
2. Identify the roles of the neurons involved: The neuron that releases the neurotransmitter is called the presynaptic neuron, while the neuron that receives and responds to the neurotransmitter is called the postsynaptic neuron.
3. Clarify the function of neurotransmitters: Neurotransmitters are chemical messengers that travel across the synaptic cleft to bind to receptors on the postsynaptic neuron, triggering a response.
4. Differentiate between the options provided: The motor neuron is involved in movement, the presynaptic neuron releases neurotransmitters, and the sensory neuron detects stimuli. None of these options describe the neuron that responds to neurotransmitters at the synapse.
5. Conclude that the correct answer is the postsynaptic neuron, as it is the one that receives and responds to the neurotransmitter at the synapse.