Which of the Following Describes the Distribution of the Polar

question 23

Multiple Choice

Which of the following describes the distribution of the polar and nonpolar portions of lipids in the lipid bilayer?

• A) Both polar heads are on the inside of the bilayer and both hydrophobic tails are on the outside of the bilayer.
• B) Both polar heads are on the outside of the bilayer and both hydrophobic tails are on the inside of the bilayer.
• C) Both the inside and outside of the bilayer consist of alternating polar heads and nonpolar tails.
• D) Some polar heads are on the inside of the bilayer and some are on the outside; the hydrophobic tails are similarly distributed.

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