Pump-O opened a special pocket on his cytoplasmic side—a docking bay labeled . The moment ATP latched on, a violent chemical reaction occurred. A phosphate group snapped off like a firecracker, releasing a surge of raw energy. The now-exhausted ADP drifted away like a spent shell casing.
The three sodium ions, who had been clinging to his interior binding sites, suddenly found themselves facing the outside world. They were ejected with a surprised “Hey!” into the extracellular fluid. primary active transport
As the pump worked tirelessly, you noticed that the cell's internal environment began to stabilize. The sodium levels decreased, and potassium levels increased. The cell's membrane potential, which is essential for nerve impulses and muscle contractions, also began to recover. Pump-O opened a special pocket on his cytoplasmic