Using a lock-and-key analogy, the receptor is the lock and the neurotransmitter is the key.

Question

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This is a commonly used analogy to describe the interaction between a receptor and neurotransmitter. The receptor, like a lock, has a specific shape that only allows certain neurotransmitters, or keys, to fit and activate it. This interaction is essential for the transmission of messages between neurons in the nervous system.

Using a Lock-And-Key Analogy, the Receptor Is the Lock and the Neurotransmitter