Suppose you are comparing the outside and inside halves of a cell membrane's phospholipid bilayer. Which of the following describes the composition of the lipids on the two surfaces?

Question

Quizplus · Accepted Answer

The composition of the lipids on the outside and inside halves of a cell membrane's phospholipid bilayer is asymmetrical. The outside surface is typically composed of mostly phosphatidylcholine and sphingomyelin, while the inner surface is composed mainly of phosphatidylethanolamine, phosphatidylserine, and phosphatidylinositol. This asymmetrical composition is vital for cell function, including signaling and transport.

Suppose You Are Comparing the Outside and Inside Halves of a Cell