“What purpose? It’s wasting energy.”
For an hour, they tracked the hoarder cell. When a sudden flood of dilute rinse solution washed through the chamber, the other cells—reliant on passive diffusion—lost nearly everything. Their internal sugar plummeted to near zero. But the hoarder cell? Its pumps kicked into higher gear. Even as the outside concentration dropped, it held its internal levels steady. When the rinse stopped, it was the only one still functioning. purpose of active transport
“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.” “What purpose
“Exactly,” he said. “It spends ATP now so it doesn’t die later. Watch.” Their internal sugar plummeted to near zero
Leo leaned in, then smiled. “That’s the purpose.”
“Leo, look. That cell is… hoarding.”