active transport
Swett
Sodium is pumped out of a nerve cell through the action of the sodium-potassium pump, which uses energy in the form of ATP to actively transport sodium ions out of the cell and potassium ions into the cell. This process helps maintain the cell's resting membrane potential and is crucial for nerve cell function.
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Active transport
Efflux via active transport
When sodium is pumped out of the cell by the sodium-potassium pump, it helps maintain the cell's resting membrane potential by generating an electrochemical gradient. This process also helps regulate cell volume and is essential for proper nerve and muscle function.
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.
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.
This statement is incorrect. The sodium-potassium pump is a type of active transport protein that uses energy in the form of ATP to pump sodium ions out of the cell and potassium ions into the cell against their respective concentration gradients. This process is essential for maintaining the proper balance of ions within cells.
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Sodium ions are pumped out of the cell by the sodium-potassium pump to maintain the cell's resting membrane potential, regulate cell volume, and create a concentration gradient that drives other transport processes. This process requires energy in the form of ATP to actively transport sodium out of the cell against its concentration gradient.
In the sodium-potassium pump, three sodium ions are pumped out of the cell while two potassium ions are pumped into the cell. This movement is powered by ATP, which is hydrolyzed to provide the energy needed for the pump to function.