Which of the Following Is a Reasonable Explanation for Why

question 74

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, forcing adjacent lipids to be further apart.
• B)Unsaturated fatty acids have a higher cholesterol content and therefore more cholesterol in membranes.
• C)Unsaturated fatty acids permit more water in the interior of the membrane.
• 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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Definitions:

External Anal Sphincter

Ring of striated muscular fibers surrounding the anus.

Inferior Oblique

A muscle in the orbit of the eye that controls elevation of the eyeball and helps in movements such as looking upward.

Lateral Rectus

A muscle in the eye that controls lateral movement of the eyeball, moving it away from the midline.

Superior Oblique

A cranial nerve-controlled muscle in the eye that helps in rotating the eye downwards and outwards.