The Fluid Dynamics of Cell Membranes

Your entire existence depends on a microscopic layer of fat that acts like a liquid brain.

The cell membrane isn't a solid wall; it is a fluid mosaic that never stops moving.

It acts as the ultimate bouncer, letting simple things like oxygen slide in for free while

forcing other molecules to pay an energy toll called ATP just to enter. This system is intense

because water is constantly trying to rush toward salt. If you put a cell in pure water,

it will literally drink until it explodes. That is exactly why you are made of trillions of

tiny cells instead of one giant blob; if your cells were any bigger, they would starve

to death.