Shoe Inserts and Prescription Custom Orthotics. You've seen them at the grocery store and at the mall. You've probably even seen them on TV and online. Shoe inserts are any kind of non-prescription foot support designed to be worn inside a shoe. Pre-packaged arch supports are shoe inserts. So are the âcustom-madeâ insoles and foot supports that you can order online or at retail stores. Unless the device has been prescribed by a doctor and crafted for your specific foot, it's a shoe insert, not a custom orthotic deviceâdespite what the ads might say.
The membrane of a cell is basically made up of a mixture of lipids  and proteins. The other components of a membrane of a cell are  phospholipids and glycoproteins.3 people found this useful.ost of the cell membrane are made up of proteins and  phospholipids. The phospholipids make up the basic cell body, with  tiny holes scattered around. It is not a solid pie â¦ ce.
Three macromolecules combine to make cell membranes. Lipids called phospholipids make up most of the cell membrane. Proteins serve as channels, pumps or markers and make up another large portion of the cell membrane. Carbohydrates are also a part of the membrane so cells can recognize each other.