glmcomolecules (IMAGE) Howard Hughes Medical Institute Caption Three types of molecules on the cell surface, glycoproteins, glycolipids, and glycoRNAs (left to right), help cells communicate with one another. Credit R. Flynn et al./Cell 2021 Usage Restrictions Must use credit 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.