Normally, sodium and potassium leakage channels differ because . multiple choice 1 sodium leakage channels require ATP to transport ions, but potassium leakage channels do not sodium leakage channels are voltage-gated, but potassium leakage channels are ligand-gated sodium leakage channels always remain open, but potassium leakage channels must be specifically activated to open sodium ions diffuse through leakage channels into the cell, but potassium ions diffuse through leakage channels out of the cell