Moderate

The fluidity of the plasma membrane increases with which of the following?

Correct answer: D. Increase in unsaturated fatty acids in the membrane

  • A. Increase in saturated fatty acids in the membrane
  • B. Increase in glycolipid content in the membrane
  • C. Increase in phospholipid content in the membrane
  • D. Increase in unsaturated fatty acids in the membrane

Explanation

The absence of double bonds decreases fluidity, making the membrane very strong and stacked tightly. Unsaturated fatty acids have at least one double bond and they increase the fluidity of the plasma membrane.

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