Sanmeet Dhillon Animal Cell Key Cell Membrane ? Orange Colored Styrofoam (not glittered) The cell membrane is also known as the plasma membrane and has many functions. It holds the structure of the cell together, protects the cell, organizes the cell, and regulates what materials and how much materials enter and leave the cell. Cytoplasm/Cytosol ? Black and White Stripped Paper The cytoplasm and cytosol are very important to the cell. They both help hold the structure of cell. They are fluids made up of mostly water and salt & they take up the area around the cell and hold organelles in their positions. Nuclear Membrane ? Orange and White String