A highly instructive, wide-ranging laboratory project in which students study the effects of various parameters on the enzymatic activity of alcohol dehydrogenase has been adapted for the upper-division biochemistry and physical biochemistry laboratory. Our two main goals were to provide enhanced data analysis, featuring nonlinear regression, and…

Describes a simple and graphic demonstration of molecular motion that utilizes a hot plate, a beaker, tap water, India ink, and a Pasteur pipette with a rubber bulb. Provides tips on guiding students to an understanding of molecular motion using this demonstration. (DDR)