Question

what is fluid mosaic model ¿¿​

Answer 1

Explanation:

The fluid mosaic model explains various observations regarding the structure of functional cell membranes. According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded. The lipid bilayer gives fluidity and elasticity to the membrane. Small amounts of carbohydrates are also found in the cell membrane. The biological model, which was devised by SJ Singer and G. L. Nicolson in 1972, describes the cell membrane as a two-dimensional liquid that restricts the lateral diffusion of membrane components. Such domains are defined by the existence of regions within the membrane with special lipid and protein cocoon that promote the formation of lipid rafts or protein and glycoprotein complexes. Another way to define membrane domains is the association of the lipid membrane with the cytoskeleton filaments and the extracellular matrix through membrane proteins.[1] The current model describes important features relevant to many cellular processes, including: cell-cell signaling, apoptosis, cell division, membrane budding, and cell fusion. The fluid mosaic model is the most acceptable model of the plasma membrane. Its main function is to separate the contents of the cell from the outside.

Answer 2

Answer:

Jonathan Singer and Garth Nicholson (1972) proposed Fluid Mosaic model.

Explanation:

it is made up of lipids and proteins together with the little amount of carbohydrate. the liquid membrane is made up of phospholipid the phospholipid molecule has a hydrophobic and hydrophilic head. the hydrophobic tail repels water and hydrophilic head attracts water. the proteins of the membrane or global important which are found intermingled between the lipid bilayer post office projecting beyond the liquid bilayer. these proteins are called as integral proteins. few are superficially attached on other purpose of the lipid bi layer which are called as pheripheral proteins.the protein are involved in transport of molecules across the membrane and also act as enzymes, receptors and antigens.