A cell needs to take up Na+ ions. The concentration of Na+ outside the cell is 200 ppm, and inside the cell it is 350 ppm. Which type of transport will the cell use? A. Active tTransport B. Diffusion C. Passive Transport D. Particle Transport
Explanation:because the amount of Na+ inside the cell is greater than outside so it's against the concentration gradient and that requires energy so we use active transport
