Diagram of a Root (image) University of Bristol Share Print E-Mail Caption This diagram of a root shows the arrangement of cells and root hairs, with the general directions of auxin flow shown in pink. Credit Claire Grierson Usage Restrictions Only to be used in conjunction with this press release. Share Print E-Mail 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.