This course offers a description of the nervous system's structure and function in terms of molecular processes. Topics are developed through lectures, discussions, and student presentations. The course begins with a brief introduction to general and organic chemistry, then continues with the following topics: neurocellular anatomy and the biochemistry of cell neurotransmitters and receptors, and the biochemistry of psychoactive drugs and neurological disorders. This course is a required core course for the Neuroscience Concentration, and with CHEM 108 or CHEM 110 fulfills the natural science distribution requirement. No prerequisite.