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Question

‘Sandwich Model’ for cell membrane was given by __________.

A
Davson and Danielli(1935)
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B
Singer and Nicolson (1972)
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C
Gorter and Grendel (1925)
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D
Overton (1875)
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Solution

The correct option is A Davson and Danielli(1935)
The Davson–Danielli model was a model of the plasma membrane of a cell, proposed in 1935 by Hugh Davson and James Danielli. The membrane was a phospholipid bilayer sandwiched between two layers of protein also known as Sandwich model.

Overton (1875) – Membrane contains lipids and it allows nonpolar substances to pass through it
Langmuir (1917) – Membrane contains lipid monolayer
Gorter and Grendel (1925) – Membrane contains lipid bilayer
Singer and Nicolson (1972) – Fluid Mosaic Model - Membrane contains phospholipid bilayer.

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