Question

If the concentration of phosphate in the cytosol is 2.0 mM and the concentration of phosphate in the surrounding fluid is 0.1 mM, how could the cell increase the concentration of phosphate in the cytosol?

a) passive transport
b) diffusion
c) active transport
d) osmosis
e) facilitated diffusion

Answer 1

Facilitated diffusion increases the concentration of phosphate in the cytosol. It happens when the cytosol is 2.0 mM and the concentration of phosphate in the surrounding fluid is 0.1 mM.