11. This enhances the binding of the GRK to the plasma membrane . 12. Type II phosphatidate phospatases are transmembrane enzymes found mainly in the plasma membrane . 13. This causes a large concentration gradient of calcium across the cnidocyte plasma membrane . 14. Zymosterol accumulates quickly in the plasma membrane coming from the cytosol. 15. In these situations, talin codistributes with concentrations of integrins in the plasma membrane . 16. Without active replenishment, the plasma membrane would continuously decrease in size. 17. It is a major component of the outer layer of the plasma membrane . 18. Enzymes that catalyze reactions are also found on the plasma membrane . 19. When cells die, the plasma membranes of those cells becomes disrupted. 20. AP2 adaptors are multisubunit complexes that perform this function at the plasma membrane .