Lipid rafts are seen in?

Lipid rafts are seen in?
a) Ribosomes
b) Mitochondria
c) Plasma membrane
d) ER
Correct Answer - C
Ans. C. Plasma membrane.

  • Lipid rafts are regions in plasma membrane that accumulate
    Cholesterol and glycolipids (glycosphingolipids).
  • So there regions are slightly thicker than other areas of plasma
  • Because f distinct molecular composition of lipid rafts, they can
    act us microcompartment within cells, giving the cell an additional
    way to organize pathways.
  • Involved in the regulation of signal transduction.
    Types of lipid rafts:
  • Planar lipid rafts (noncaveolar or glycolipid rafts)
  • Continuous with plane of cell membrane (they are not invaginate).
  • Specialized types of lipid rafts which are flask like invaginations of
    plasma membrane.
  • Produced where caveolin protein is present in lipid bilayer