Toroid Covered with Microtubules (IMAGE) Georgia Institute of Technology Caption This an image taken of a toroid using a confocal microscope, false-colored by height. The worm-like structures are microtubules driven by kinesin motor proteins. Credit Credit: Perry Ellis, Georgia Tech Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.