Autophagy (IMAGE) Salk Institute Caption When the process of autophagy is defective, cells are unable to recycle cellular organelles such as mitochondria (shown in red) to generate molecular building blocks when needed. Cell nuclei are shown in blue. Credit Daniel Egan, Salk Institute for Biological Studies Usage Restrictions For one time use only. 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.