Gwinnett Technical College student Pamela Uwechue fills and checks the level of demineralized water in a one liter graduate as part of her Integrative Biology Class laboratory work in the Bioscience Laboratory at Gwinnett Technical College in Lawrenceville, GA on Friday, Mar. 20, 2015. Uwechue is 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/16734617790/">20150320-OSEC-LSC-0065</a>