Rafts in cell membrane are rich in which of the following?
Correct Answer: Cholesterol
Description: Some areas of the cell membrane are especially rich in cholesterol and sphingolipids and have been called rafts. These rafts are probably the precursors of flask-shaped membrane depressions called caveolae (little caves) when their walls become infiltrated with a protein called caveolin that resembles clathrin. There is considerable debate about the functions of rafts and caveolae, with evidence that they are involved in cholesterol regulation and transcytosis. Ref: Ganong's Review of Medical Physiology 23rd edition, Chapter 2.
Category:
Physiology
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