Abstract: Plant cell walls are versatile structures, playing important roles in communication, defense, organization and support. The importance of each of these functions varies by cell type, with specialized cells often utilizing one or two functions more than others. Trichomes, or leaf hairs, and hypocotyl cells for instance, exhibit distinct cell wall characteristics. Trichomes have developed very thick cell walls with several raised structures, known as papillae, on their surfaces. It is believed that these cells function in defense against predators, making it difficult to crawl on the leaf surface, and in protection against ultra violet radiation, through refraction of light via the papillae. Hypocotyl cells on the other hand are long and narrow, with cell walls that undergo extensive remodeling to permit rapid oriented cell growth. This enables hypocotyl cells to elongate along the axis of plant development, pushing the developing shoot through the soil.