Abstract Background During apoptosis. Ca2+-dependent events participate in the regulation of intracellular and morphological changes including phosphatidylserine exposure in the exoplasmic leaflet of the cell plasma membrane. The occurrence of phosphatidylserine at the surface of specialized cells. such as platelets. https://www.markymarkscott.com/product-category/calandula-gold-hard-wax-with-tea-tree/