Question

According to fluid mosaic model the plasma membrane presents

Answer 1

Fluid mosaic model of a cell membrane

The fluid mosaic model explains various observations regarding the structure of functional cell membranes. According to this model, there is a lipid . The lipid bilayer gives fluidity and elasticity to the membrane. Small amounts of carbohydrates are also found in cell membrane. SJ Singer and GL Nicolson in 1972 described it. The association of the lipid membrane with the cytoskeleton filaments and the extracellular matrix through membrane proteins.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 plasma membrane. Its main function is to give shape to the cell .

Answer 2

${\blue{\fbox{\boxed{\huge{\star{\mathrm{\red{Answer}}}}}}}}$

Nearly all the membrane proteins have carbohydrates, but only 5 % of lipids are glycolipids. Carbohydrates of the plasma membrane as a whole are referred as glycocalyx. In some cell types, glycocalyx is so developed that can be observed with the electron microscope.