Which of the Following Is a Reasonable Explanation for Why

question 18

Multiple Choice

Which of the following is a reasonable explanation for why unsaturated fatty acids help keep any membrane more fluid at lower temperatures?

• A) The double bonds form kinks in the fatty acid tails, preventing adjacent lipids from packing tightly.
• B) Unsaturated fatty acids have a higher cholesterol content and therefore more cholesterol in membranes.
• C) Unsaturated fatty acids are more polar than saturated fatty acids.
• D) The double bonds block interaction among the hydrophilic head groups of the lipids.
• E) The double bonds result in shorter fatty acid tails and thinner membranes.

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