The cell membrane! It plays a huge role in any cell and helps to maintain it. Much of the cell is made up of something that looks like a ball with two strings attached to it. The two strings are fatty acyl tails and the ball is a hydrophobic polar head. This is called the hydrophobic core. Next you have proteins that run through the hydrophilic core. These proteins vary in what functions they do. A integral protein act as a receptor. A glycoprotein helps to stabilize it. A peripheral protein is used to protect the membrane. In addition, different sugar groups lay on the outer layer of the membrane and also lay on the proteins. Here below is a picture of a cell membrane!
