Which of the following increases membrane fluidity at cool t

Which of the following increases membrane fluidity at cool temperatures?

Please select one:

(a) An abundance of cholesterol and unsaturated fatty acids in membrane phospholipids.

(b) An abundance of saturated fatty acids in membrane phospholipids.

(c) High cholesterol levels.

(d) An abundance of cholesterol and saturated fatty acids in membrane phospholipids.

Solution

Option A. An abundance of cholesterol and unsaturated fatty acids in membrane phospholipids.

Unsaturated fatty acids if compressed by low temperature, the kinks push the phospholipids away and maintain fluidity. Cholesterol acts as a buffer.