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Solution
Fluid mosaic model was proposed by Singer and Nicolson, thus statement a is wrong.
Phospholipids form the basic frame, thus statement B is also incorrect.
According to the fluid mosaic model, there is a lipid bilayer in which protein molecules are embedded in a mosaic pattern. The lipid bilayer gives fluidity and elasticity to the membrane. It makes plasma membrane structurally asymmetrical. Thus statement c is correct. Statement D is also correct.
Thus option 3 is the correct answer.
Fluid mosaic model was proposed by Singer and Nicolson, thus statement a is wrong.
Phospholipids form the basic frame, thus statement B is also incorrect.
According to the fluid mosaic model, there is a lipid bilayer in which protein molecules are embedded in a mosaic pattern. The lipid bilayer gives fluidity and elasticity to the membrane. It makes plasma membrane structurally asymmetrical. Thus statement c is correct. Statement D is also correct.
Thus option 3 is the correct answer.