| Main Entry: | fluid mosaic model |
| Part of Speech: | n |
| Definition: | a conceptual model of cell membrane and its boundary as a tightly packed double layer of phospholipid molecules interspersed with protein molecules which aid cross-membrane transport |
A model that describes the structure of cell membranes. In this model, a flexible layer made of lipid molecules is interspersed with large protein molecules that act as channels through which other molecules enter and leave the cell.
