The ions can enter or leave the cell by the instrumentality of a pump. Option A
What is cell?
The cell is the smallest unit in taxonomy. It is the minutest level of life and all organisms are composed of cells. The cells are capable of carrying out all of their own activities.
The ions can enter or leave the cell by the instrumentality of a pump. This is how the sodium and the potassium ions are able to enter into the cell.
Learn more about ion pumps in the cell:https://brainly.com/question/11758969
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