How do the cell membranes of a hibernating animal change in colder temperatures?
A) They release all of their peripheral membrane proteins.
B) Saturated fatty acids are more tightly packed.
C) Integral membrane proteins increase in number.
D) Unsaturated fatty acids make up more of the lipid composition.
E) Fatty acids with longer tails increase in number.

Question

Quizplus · Accepted Answer

In colder temperatures, cell membranes of hibernating animals incorporate more unsaturated fatty acids to maintain fluidity, as these fatty acids have kinks that prevent tight packing.

How Do the Cell Membranes of a Hibernating Animal Change