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According to widely accepted ‘fluid mosaic model’ cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statement is incorrect?

a)

Proteins in cell membranes can travel within the lipid bilayer

b)

Proteins can remain confined within certain domains of the membrane

c)

Proteins can also undergo flip-flip movements in the lipid bilayer

d)

Many proteins remain completely embedded within the lipid bilayer


Question ID - 2663 | Toppr Answer

According to widely accepted ‘fluid mosaic model’ cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statement is incorrect?

a)

Proteins in cell membranes can travel within the lipid bilayer

b)

Proteins can remain confined within certain domains of the membrane

c)

Proteins can also undergo flip-flip movements in the lipid bilayer

d)

Many proteins remain completely embedded within the lipid bilayer

1 Answer - 5876 Votes

3537

Answer Key : (c) -

(c)

According to fluid mosaic model, proteins cannot undergo flip-flop movements in the lipid bilayer.



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