Question

use the model shown and drop - down menus to correctly describe the na+/k+ pump. the sodium - potassium pump (na+/k+) is an example of... when nerve cells send a signal to detect touch, na+ moves out of the cell... k+ moves into the cell... it’s concentration gradient to create an electrochemical gradient.

Explanation:

The problem here is about the Na⁺/K⁺ pump, which is a topic in Biology (a subfield of Natural Science). The Na⁺/K⁺ pump is an example of active transport (since it moves ions against their concentration gradients, using energy, typically from ATP hydrolysis).

The Na⁺/K⁺ pump (sodium - potassium pump) is a transmembrane protein that moves 3 Na⁺ ions out of the cell and 2 K⁺ ions into the cell, against their concentration gradients. This process requires energy (ATP), so it is an example of active transport. Active transport is the movement of molecules or ions across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient—and it requires the expenditure of energy (usually from ATP).

Answer:

The Na⁺/K⁺ pump is an example of active transport. When nerve cells send a signal (action potential), after the signal is transmitted, the Na⁺/K⁺ pump works to restore the ion concentrations (pumping Na⁺ out and K⁺ in) to re - establish the electrochemical gradient (resting membrane potential) so that the nerve cell can send another signal.