Overview of Plant Cell Walls (IMAGE) American Society of Plant Biologists Caption The above figure from the U.S. Department of Energy gives a graphic depiction of the composition of plant cell wall (biomass). Cellulose and hemicellulose contain sugars which can be converted into ethanol. However, with current technology, it is costly to separate cellulose and hemicellulose from lignin to access the valuable sugars. Somerville explained how increased understanding of the plant cell wall can lead to development of energy crops that increase production of cellulose and hemicellulose in the plant cell wall and facilitate separation of cellulose and hemicellulose from lignin. Credit None 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.