How is temperature below zero degrees centigrade affect cell permeability

ExplanaGenerally, increasing the temperature increases membrane permeability. At temperatures below 0 o C the phospholipids in the membrane don't have much energy and so they can't move much, which means that they're closely packed together and the membrane is rigidtion:

At temperatures below 0°C the phospholipids in the membrane don't have much energy and so they can't move much, which means that they're closely packed together and the membrane is rigid.

thinking it would be physical characteristics