How is the structure of stone cell? Md. Saifur Rahman These cells compared with most fibers are shorter, isodiametric, or sometimes long and star-shaped. Their secondary cell walls are very durable, thick, and lignified. The walls of the cells are pitted. You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?