Lung surfactant complex (IMAGE) University of Minnesota Caption This Image shows the lung surfactant, a complex composed of fats and proteins generated in the lungs, after being exposed to the lysolipid in water where the bright red spots indicate the lysolipid replacing the lung surfactant in a layer of cells. Credit Zasadzinski Research Group, University of Minnesota Twin Cities Usage Restrictions Zasadzinski Research Group, University of Minnesota Twin Cities License Original 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.