Question

In fluid mosaic model of plasma membrane

• A. upper layer is non-polar and hydrophilic
• B. polar layer is hydrophobic
• C. phospholipids form a bimolecular layer middle part
• D. proteins from a middle layer

Answer 1

Answer: (C)

Fluid Mosaic Model is introduced by SJ Singer and G. Nicolson $(1972)$. According to the fluid mosaic model, the cell membrane consists of a highly viscous fluid matrix of two layers of phospholipid molecules. Protein molecules (or their complexes) occurs in membrane but not in continuous layer.