Plasma membranes must be in a fluid (liquid) state in order to function properly. Fluidity is temperature- dependent. Bacteria can regulate the specific lipid composition of their plasma membranes. Which of the following statements is true?
A) The proportion of saturated lipids in the plasma membrane will increase with both cooler and warmer growth temperatures.
B) The proportion of unsaturated lipids in the plasma membrane will increase with warmer growth temperatures.
C) The proportion of unsaturated lipids in the plasma membrane will increase with cooler growth temperatures.
D) The proportion of saturated lipids in the plasma membrane will increase with cooler growth temperatures while the proportion of unsaturated lipids will increase with warmer growth temperatures.
E) The proportion of saturated lipids in the plasma membrane will increase with cooler growth temperatures.
Correct Answer:
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