A magnetic stirrer spins a pellet in a graduated beaker filled with a liquid solution in the Integrative Biology Class laboratory at the Bioscience Laboratory at Gwinnett Technical College in Lawrenceville, GA on Friday, Mar. 20, 2015. Students are working on a project studying the kinetics (properties) of the enzyme tyrosinase (ty-rose’-n-ase) that is being isolated from potatoes. USDA photo by Lance Cheung.
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/people/41284017@N08">U.S. Department of Agriculture</a>
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Lance Cheung/Multimedia PhotoJournalist
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usdagov/16302019353/">20150320-OSEC-LSC-0117</a>