Sodium-Potassium pump uses ATP (energy) to pump sodium out of cells and potassium back in.
A sodium/potassium pump.
sodium-potassium pump
sodium potassium pump
Exocytosis
The sodium potassium pump transports sodium and potassium into and out of the cell. look at this site. it will explain. Source: http://highered.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::535::/sites/dl/free/0072437316/120068/bio03.swf::Sodium-Potassium%20Exchange%20Pump
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.
Hmm. Maybe Sodium and Potassium? Or another answer is it transfers Na+ (sodium) out of the cell and K+ potassium into the cell.
osmosis
The sodium potassium pump does not function during depolarization, but rather after repolarization. During repolarization, potassium ions flow out of the cell into the extracellular space to reestablish membrane polarity. What the sodium potassium exchange pump does is reestablish the initial ionic concentrations. It does this by exchanging three sodium ions inside the cell for every two potassium ions outside the cell.
repolarization
The sodium potassium pump transports sodium and potassium into and out of the cell. look at this site. it will explain. Source: http://highered.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::535::/sites/dl/free/0072437316/120068/bio03.swf::Sodium-Potassium%20Exchange%20Pump
The process of moving sodium and potassium ions across the cell is an active transport process involving the hydrolysis of ATP to provide the necessary energy.
NaKATPase transports 3 K ions into the cell and takes only two Na ions out of it.
The sodium potassium pump is constantly a work in each cell of the body to keep sodium and potassium levels in cell fluids even. This pump allows sodium ions which are abundant outside of the cell, to diffuse into the cell, and potassium, which is abundant inside the cell, to diffuse to outside the cell. If this process were to cease, sodium ions would build up inside your cells, which would attract water and ultimately cause the cell to explode.
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.
Repolarization The questioner was looking for the mechanism not the process. The answer is the sodium potassium pump.
The action of the sodium-potassium pump which is active transport.
The action of the sodium-potassium pump which is active transport.
When a nerve cell (neuron) or muscle cell react, they do so by a process called depolarization. Before depolarization, the inside of the cell is slightly negative and the outside is slightly positive. During depolarization, sodium ions rush into the cell while potassium channels leak out. This reverses the original polarization and now the cell is said to be depolarized. The sodium/potassium pump helps reverse this back to its original polarized state so the cell can react again.
Hmm. Maybe Sodium and Potassium? Or another answer is it transfers Na+ (sodium) out of the cell and K+ potassium into the cell.
Yes, for every two potassium ions it ports back into the cell it will eject three sodium ions out.