Question

explain plasma membrane models. ​

Answer 1

All cells are surrounded by a plasma membrane. The membrane is composed of a phospholipid bilayer arranged back to back. The membrane is also covered in places with cholesterol molecules and proteins. The plasma membrane is selectively permeable and regulates which molecules are allowed to enter and exit the cell......

Answer 2

The fluid mosaic model describes the structure of the plasma membrane as a mosaic of components —including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character. Plasma membranes range from 5 to 10 nm in thickness.