Respuesta :
The mechanism of ion uptake that would best move sodium from the inside of the cell to the outside is ACTIVE TRANSPORT. It is a mechanism that requires energy.
Active transport is a mechanism used by cells to move substances and ions against a concentration gradient.
In active transport, substances are moved across biological membranes from a region of low concentration to a region of high concentration.
Active transport requires energy which is generally provided by the hydrolysis of ATP.
Learn more about active transport here:
https://brainly.com/question/2503897