my diq
Sodium ions and potassium ions are pumped in opposite directions. Sodium ions are pumped out of the cell and potassium ions are pumped into the cell.
passive transport
3 sodium ions go out and 2 potassium ions go in
Using energy supplied by ATP, sodium ions are constantly pumped out of the nerve cell while at the same time potassium ions are pumped into the cell. This is termed the sodium-potassium pump.
No. Three sodium ions are pumped out of the neuron by the sodium-potassium pump and two potassium ions enter the cell. This way you maintain a slightly negative charge just inside the cell membrane.
I think you're looking for three ... over the long run. But the trick is that K+ doesn't need to be pumped in. Membrane proteins act as variable sized pore in the membrane (channels) and the potassium flows in under electrostatic forces ... all the work is done pumping the Na+ out.
By facilitated diffusion and active transport
The sodium-potassium pump is a transmembrane protein in a cell membrane. It keeps large concentrations of sodium ions outside the cell, and potassium ions inside the cell. It does this by pumping the sodium ions out, and the potassium ions in.
Sodium brings ions, organic molecules, vitamins and water into the epithelial cells, which is then pumped by Na/K ATPase into the interstitial space, which then flows into the blood.
NaKATPase transports 3 K ions into the cell and takes only two Na ions out of it.
by pumping sodium ions out of the cell with the Na+/K+ ATPase
Hmm. Maybe Sodium and Potassium? Or another answer is it transfers Na+ (sodium) out of the cell and K+ potassium into the cell.