(IMAGE) BIOSS - Centre for Biological Signalling Studies Caption Bacterial toxins usually exert their full deadly effect in the host cell's interior. The toxins overcome the cell membrane by binding to a surface receptor, which conveys them into the cell's interior. Credit © Panagiotis Papatheodorou Usage Restrictions The image may only be used with the appropriate caption and the 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.