Currently, the department of Molecular & Cellular Biology does not own any department-wide licenses.
The University of Arizona does maintain licenses for many useful programs, including:
Microsoft Office
Microsft OSes (Windows 7/8, Server 2008/2012... etc)
Apple Software (iLife, iWork, and OS X)
Adobe Creative Cloud
Many other more specialized programs
More information on University licensed software is available at the University of Arizona Site Licensing website.
If the title you want to use is not covered under a UA site license (titles such as EndNote, SPSS), it can often be purchased as an educational discount through the UA Bookstore (click on the "Software" menu on the left side of the bookstore page).