How Does the Proportion of Saturation and Unsaturation in Membrane

question 54

Multiple Choice

How does the proportion of saturation and unsaturation in membrane lipids affect the fluidity of the cell membrane?

• A)Membrane fluidity increases with an increase in the percentage of unsaturation.
• B)Membrane fluidity decreases with an increase in the percentage of unsaturation.
• C)Membrane fluidity increases with an increase in the percentage of saturation.
• D)Membranes are most fluid when there is an equal proportion of saturation and unsaturation.
• E)Membrane fluidity depends only on the size of the carbon chains,and not on the proportions of saturation and unsaturation.

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