The sodium-potassium (Na+ -K+) pump transports both sodium and potassium against their concentration gradient in a process called active transport.
What is active transport?
Active transport is the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
The sodium-potassium (Na+ -K+) pump is a vivid example of active transport because pottasium and sodium ions are moved against concentration gradient.
This process is called active transport because it requires energy in form of ATP.
Learn more about active transport at: https://brainly.com/question/12133248
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