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.
all cells have cell membranes, but only some have cell walls too. animal cells only have cell membranes, which are flexible and made of cholesterol. plant cells have cell walls made out of cellulose and fungi have cell walls made out of chitin.est Answer: Cell wall and cell membrane both are semipermeable which form the outer covering of cell keeping the cell cytoplasm intact. Cell wall is made of cellulose where as cell membrane is made of phopholipids. Source(s): . Ashish Â· 5 years ago.