To begin, the outside of the cell is called the cell wall, which helps to keep the shape of the cell and acts as a protective barrier. Right inside of the cell wall is the plasma membrane, which controls the type and mass of materials that come and go out of the cell. After the plasma membrane decides what is needed the vacuole is where the material is stored. The parts responsible for the muscle of a cell is the cytoskeleton which is made up of three protein filaments, microtubules, actin filaments (microfilaments), and intermediate fibers. All of these filaments work together to shape the cell, but the main important function is the cells motility. While the cytoskeleton is important for the muscle function of a cell, the mitochondrion (the power of the cell) is needed to supply energy that helps a cell to move about and produce ATP. The parts of the cell that is responsible for producing proteins are called ribosomes. Ribosomes are the reason for the name of our next part, which is the rough endoplasmic reticulum. The ribosomes are on top of the rough er and they work together to produce then transfer proteins. A cell also contains a part called the smooth endoplasmic reticulum which controls the amount of calcium released, breaks down toxins and creates lipids. While the smooth er creates the lipids, the Golgi body is responsible for distributing them. The Golgi body distributes enzymes and proteins as well. The appearance of a plant is possible because of the