Question

The fluid-mosaic model of cell membranes refers to the discovery that membranes are composed

of a bilayer of phospholipids with proteins embedded; both phospholipids and proteins can easily
flip from inside to out (or vice versa), but cannot move laterally in the membrane.
O True
O False

Answer 1

False

Step-by-step explanation:

The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) that are constantly moving.Membrane proteins and phospholipids are unable to move back and forth between the inner and outer leaflets of the membrane at an appreciable rate. However, because they are inserted into a fluid lipid bilayer,both are able to diffuse laterally through the membrane.

Individual phospholipids and proteins can rotate and move laterally within a bilayer.

Hope this helps!