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Lipids: Essential Fats: Why is shape important in biology

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Proteins: Bulking up Cells: Why is shape important in biology?

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Lipid rafts are rich in sphingolipids and cholesterol, and it is thought that cholesterol plays a central role in raft formation since lipid rafts apparently do not form in its absence. Why do your suppose that cholesterol is essential for formation of lipid rafts? (Hint: sphingolipids other than sphingomyelin have large head groups composed of several linked sugar molecules and are found in lipid rafts).

Which of the following is nota function in which lipids play an important role?

A) Vision

B) Storing energy

C) Membrane structure

D) Storing genetic information

E) Chemical signaling