Angola 12th Grade Biology National Exam Practice Questions - Angola 12th Grade National Examination - Biology (Exame Nacional Da 12.a Classe Biologia) Exam

Pumps 3 Na+ out of the cell and 2 K+ into the cell per ATP hydrolyzed, maintaining negative resting potential. Pumps 2 Na+ into the cell and 3 K+ out of the cell per ATP hydrolyzed, depolarizing the cell membrane. Pumps 3 Na+ and 3 K+ out of the cell simultaneously without using ATP, equilibrating electrical charge. Pumps 1 Na+ and 1 K+ in opposite directions by passive cotransport coupled with glucose diffusion.