Dr.Jones discovers a new drug that has a similar shape to endorphins,which are natural chemicals that relieve pain.If this new drug works in the same way as endorphins,we would refer to it as a(n):

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An agonist is a chemical that binds to a receptor and produces a similar effect as the endogenous ligand. In this case, the new drug has a structure similar to endorphins and can relieve pain in the same way. Therefore, it would be referred to as an agonist. A antagonist, on the other hand, binds to a receptor and blocks the effects of the endogenous ligand, while hormones are chemical messengers secreted by endocrine glands. Amphetamine is a psychostimulant drug that works by increasing the release and blocking the reuptake of certain neurotransmitters.

DrJones Discovers a New Drug That Has a Similar Shape