Question

Difference between unit membrane model and fluid mosaic model of plasma membrane structure

Answer 1

Answer:

The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) that are constantly moving. This movement helps the cell membrane maintain its role as a barrier between the inside and outside of the cell environments.

This Biomembrane model proposed by Robertson stated that Biomembranes are made up of three layers. Out of these three layers, two are protein layers and one is phospholipid layer. Phospholipid Bilayer is 25-35Å thick and Each of the two Protein layer is 20-25Å thick (Overall 65-85Å) Robertson used electron bombardment on membranes and observed two distinct zones