Most K⁺ is located in the cells,with little K⁺ in the tissue spaces.What accounts for the movement of additional K⁺ into the cells?
A)K+ in the tissue fluid diffuses into the cell.
B)K+ enters the cell in response to facilitated diffusion.
C)K+ is actively pumped into the cell.
D)K+ enters the cell because of pinocytosis.

Question

Quizplus · Accepted Answer

Additional K+ is moved into the cells by active transport, in which K+ is actively pumped across the cell membrane from an area of lower concentration to an area of higher concentration. This helps maintain the high intracellular K+ concentration and low extracellular K+ concentration that is necessary for proper cellular function.

Most K⁺ Is Located in the Cells,with Little K⁺ in the Tissue