Chapter 7
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Chapter 7
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Question:
After a membrane freezes and then thaws, it often becomes leaky to solutes. The mostreasonable explanation for this is that
A) transport proteins become nonfunctional during freezing.
B) the lipid bilayer loses its fluidity when it freezes.
C) aquaporins can no longer function after freezing.
D) the integrity of the lipid bilayer is broken when the membrane freezes.
E) thesolubility of most solutes in the cytoplasm decreases on freezing.
Answer:
D) the integrity of the lipid bilayer is broken when the membrane freezes.