Exocytosis (/ËÉksoÊsaÉªËtoÊsÉªs/[1][2]) is a form of active transport in which a cell transports molecules (such as proteins) out of the cell (exo- + cytosis) by expelling them in an energy-using process.
David Ramsay (April 2, 1749 â May 8, 1815) was an American physician, public official, and historian from Charleston, South Carolina.
David A. Johnston. David Alexander Johnston (December 18, 1949 â May 18, 1980) was an American USGS volcanologist who was killed during the 1980 eruption of Mount St. Helens in Washington.