Why Do We Refer to the NAChR as a Receptor

question 4

Multiple Choice

Why do we refer to the nAChR as a receptor rather than a channel?

• A) To distinguish it from muscarinic receptors, which do not form a channel
• B) Because it is present in skeletal muscle and electric organs (a modified form of muscle) as well as neurons
• C) Because its principal function is reception of signals from presynaptic partners
• D) To emphasize its commonality with other Cys-loop receptors and dissimilarity compared to voltage-activated ion channels
• E) Because its ligand-binding properties more substantively contributed to its characterization than the conduction properties of its channel

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