The answer is yes, there are. But to understand these signs and symptoms of pancreatic cancer, it's important to understand where the pancreas is, and what it does. Located deep inside the abdomen, the pancreas is only 4 to 6 inches long and shaped like a tadpole.
Fungi and some ptotozoa also have cell walls. They are not the same as the plant cell walls made of cellulose. The other walls might be made from proteins or a substance called chitin. Chitin is another structural carbohydrate. They all serve the same purpose of protecting and maintaining structure, but they are very different molecules.
A cell wall is a structural layer that surrounds most types of cells, situated outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism. Cell walls are present in most prokaryotes, and in plants, fungi and other eukaryotes, where a major function is to act as pressure vessels, preventing over-expansion of the cell when water enters. Cell walls are absent from Mycoplasma bacteria, animal, and human cells.