Problem: A bacterial cell moves from an environment with a moderate temperature to an environment with a higher temperature. Which of the following changes to the membrane would help the bacterial cell to survive this temperature shift?
a. Removal of cholesterol from the membrane
b. Addition of more proteins to the membrane
c. Addition of shorter fatty acids in the membrane phospholipids
d. Addition of more unsaturated fatty acids in the membrane phospholipids
e. Addition of more saturated fatty acids in the membrane phospholipids