This pie chart represents the approximate distribution of the three primary components of plant cell walls—cellulose, hemicellulose, and lignin.
Credit or Source: Office of Biological and Environmental Research of the U.S. Department of Energy Office of Science. science.energy.gov/ber/
U.S. DOE. 2015. Lignocellulosic Biomass for Advanced Biofuels and Bioproducts: Workshop Report, DOE/SC-0170. U.S. Department of Energy Office of Science. (p. 3) (website)