“Not just stored,” Leo said. “It created the gradient. That’s the whole point of active transport—to build and maintain an imbalance. That imbalance is power. It’s how nerves fire, how muscles contract, how roots suck water from dry soil. Diffusion can’t do that. Diffusion just… equalizes. Equalization is death.”
The hoarder cell began to divide. Its daughter cells inherited the same fierce pumps. Within a day, they had taken over the entire dish. purpose of active transport
Alexa sat back. “It stored a reserve. Against the gradient.” “Not just stored,” Leo said
That’s when she saw it.