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A red blood corpuscle (RBC) was kept in ...

A red blood corpuscle (RBC) was kept in a solution and treated so that it became inside-out. What will be the polarity of the phospholipid bilayer in this cell ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
When phospholipid bilayer is turned inside out the sturcture of bilayer will remain the same as earlier as from both the sides, poalr hydrophilic heads are at puter side and non-polar hydrophobic tails are inside the former. When the bio-menbrane if freeze-fractured to cut it from the middle of the bilayer and turned inside out, only then direction of phospholipids changes.
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Knowledge Check

  • A red blood cell placed in 50% NaCl solution will :

    A
    undergo crenation
    B
    swell and eventually burst due to water intake
    C
    stay the same size
    D
    none of the above