Cellular Shipping Logistics Empire

Your body is literally running a microscopic shipping logistics empire right now. It is wild because

proteins do not just float around randomly, they have actual zip codes called

signal sequences. If a protein wants to get into the nucleus, it has to flash

a specific ID card to the nuclear pore bouncers or it gets rejected. Then you have the

ER, which is basically a warehouse where packages get wrapped in vesicle coats

to get shipped to the Golgi. The roads they travel on are made of microtubules that constantly

build and destroy themselves. It is absolute organized chaos that keeps you alive.