Write e in the blank if the material is heterogeneous or o if it is homogeneous. 1. wood _ 6. dirt _ 2. freshly-brewed black coffee _ 7. sausage and mushroom pizza _ 3. water _ 8. air _ 4. lucky charms_ 9. milk _ 5. salt _ 10. gold _

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