Intro- Submarines are a lot like cells in many ways. Both are organized into parts and without them they would both collapse. Each has specific parts that perform certain tasks. They both also have a mode of functionality that depends on whether the other parts inside are working or not. Within an airframe and a submarine, it is easy to see that both are divided into almost exact structures placing key elements in areas close to each other, allowing for maximum functionality. Submarine cell wall. The cell wall is similar to the outer hull of the submarine. The cell wall is a rigid wall found only in plant cells that protects the cell while being unregulated or inactive, allowing elements to enter and exit where the cell membrane is active. It is made of cellulose and protects the cell from implosion during osmosis. The cell wall works with the vacuole to help support the plant. In the submarine, the cell wall acts as the outer shell. It protects the airframe from external dangers such as other missiles, radars and ships while allowing supplies or divers to enter. The cell wall and outer shell are similar in that they both provide a layer of protection from other elements outside the cell, but they still inactively allow products to penetrate inside their walls. Cell Membrane-Sonar. A submarine's sonar is the cell membrane of the cell. The cell membrane completely surrounds the cell, protecting its contents from the environment. The cellular pathway is a sandwich-like bilayer with hydrophilic phosphates at each end surrounding a layer of lipids. By diffusion and/or active transport, material enters and leaves the cell. Inside the membrane, pieces of cell can move and change position relative to the whole cell. On a paper......the series are divided by the government or divided throughout the country so that cell production can increase. Depending on the war and the need for submarines, more factories are built. Both are essential to the division and growth of these areas. Without centrioles, nothing could ultimately grow, because a cell would not be able to divide and expand, no matter what shape it takes, and submarines would not be produced, making it very difficult a naval war. In conclusion, there is no better way to compare. a cell in an analogy with that of a cell on a submarine. The two make a perfect match as they are organized in an almost identical way. I have come to the conclusion that Cornelis Jacobszoon Drebbel, the creator of the submarine, based his exact design on that of a cell... even though Robert Hooke was not born until 1635 and the submarine -marin was designed in 1620.