Question

Fluid mosiac model proposed by singer and nicolson replaced sandwich model proposed by danielli and davson?why?

Answer 1

Explanation:

It was replaced by sandwich model as Fluid Mosaic Model only describes the characteristics of cell membrane from upper view.It explains that proteins are like ice bergs floating on sea of lipids.

But sandwich model gives detail explanation about the arrangement of lipids and proteins.i.e,the lipid's are arranged as a bilayer in which the intrinsic and extrinsic proteins are embedded which resembles a sandwich.

Answer 2

Answer:

Answer. because singer and nicolson gave the proper description about the plasma membrane and danielli and dawson gave less information! also the way in which singer and nicolson presented it matches with what others saw in the microscope!

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