Cell with Organelles (IMAGE) University of California - San Diego Caption An electron microscope image of a mammalian cell with organelles depicted. In autophagy, some elements of a cell are degraded and recycled to generate nutrients and energy to sustain and preserve the whole cell. Credit UC San Diego School of Medicine 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.