
Singer and Nicolson
The Singer and Nicolson model, proposed in 1972 by researchers S.J. Singer and G.L. Nicolson, describes the structure of cell membranes. This fluid mosaic model suggests that cell membranes are not rigid but rather dynamic and flexible. They consist of a double layer of lipids with proteins embedded within, resembling a mosaic. These proteins can move laterally within the lipid layer, allowing for various functions such as transport, communication, and signaling. This model revolutionized our understanding of cell membranes, emphasizing their complexity and role in the function of living cells.