Question

What Helps to maintain the plasma membranes fluidity?

Answer 1

Unsaturated fatty acids are compressed. Causing their tails to push adjacent phospholipid molecules away

Answer 2

If unsaturated fatty acids are compressed, the “kinks” in their tails push adjacent phospholipid molecules away, which helps maintain fluidity in the membrane. The ratio of saturated and unsaturated fatty acids determines the fluidity in the membrane at cold temperatures.