Question

which of the following statements best describes the fluid mosaic model of the plasma membrane?
a single layer of proteins with lipid molecules dispersed within
a lipid bilayer with protein molecules dispersed within it
a single layer of lipids surrounding a layer of proteins
a protein bilayer sandwiching a layer of lipids
a single layer of proteins surrounding a single layer of lipids
i dont know yet

Explanation:

The fluid mosaic model of the plasma membrane states that the membrane is composed of a phospholipid (lipid) bilayer, with protein molecules embedded (dispersed) within this bilayer. The other options are incorrect: the first option has a single layer of proteins and wrong arrangement; the third, fourth, and fifth options describe incorrect structures (single - layer lipids/proteins or protein bilayers which are not part of the fluid mosaic model).

Answer:

B. A lipid bilayer with protein molecules dispersed within it