fluid mosaic model

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
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Cultural Dictionary

fluid mosaic model definition


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.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
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