3. Which of the following is one of the ways that the membranes of winter wheat are able to remain fluid when it is extremely
cold?
(A) by increasing the percentage of cholesterol molecules in the membrane.
(B) by co-transport of glucose and hydrogen.
(C) by decreasing the number of hydrophobic proteins in the membrane.
(D) by increasing the percentage of saturated phospholipids in the membrane.
(E) by increasing the percentage of unsaturated phospholipids in the membrane.