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STD 11 - 8. Cell the unit of life — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 8. Cell the unit of life1 Mark
MCQ
The best material for study of structure of cell membrane is
  • ✓
    $RBC$ of human
  • B
    $R B C$ of frog
  • C
    cheek cell of human
  • D
    liver cell of rat
✓

Answer

Correct option: A.
$RBC$ of human
a
$RBC$ (red blood cell) of the human is the best material for the study of structure of cell membrane. Chemical  studies on the $RBC$ cell membrane enabled the scientists to infer the possible structure of plasma membrane. The plasma membrane of the $RBC$ consists of a complex, well-ordered group of lipids and proteins stretched over the outer surface of the cell in the form of a lipid bilayer punctuated by penetrating or attached proteins. This membrane has numerous properties that arise in part from specialized interactions between specific membrane proteins or lipids, or both.

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