Elements whose properties are most similar. 5. Use a periodic table to choose the pair of
A. silicon (Si), phosphorus (P)
B. neon (Ne), sulfur (S)
C. potassium (K), magnesium (Mg)
D. chlorine (CI), iodine (1)

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 transportb) diffusionc) active transportd) osmosise) facilitated diffusion