The molecules inside will start to slow down, causing it to become less and less fluid. Think of freezing water. After some time, it can't slosh back and forth after being subjected to cold for so long.
It is cholesterol that causes the fludity of the plasma membrane. The incorporation of cholesterol in a diet is highly important, because cholesterol gives the membrane the fluidity and consitency of...
By interrupting the continuity of the phospholipids, cholesterol will lower the freezing point of the membrane. However, organism inhabiting colder climates have evolved unsaturated fatty acid chains...
As heat increases, the membranes will become more fluid and as the temperature decreases it will solidify more. i.e. butter, in the fridge its solid but if you take it out then it will eventually...
Typically, a lower temperature denotes higher density, but many LIQUIDS are uncompressible (water actually expands slightly as it freezes) and therefore density in maintained. FLUIDS on the other...