Cell Membrane Function. The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell, while keeping other substances out.
25 years old, 2 December 1886 to Theodore Roosevelt, rancher and author, (27 October 1858, New York, New York, died 6 January 1919, Oyster Bay, New York) at St. Georgeâs Anglican Church, Hanover Square, London, England.
for his father the 26th united states president see theodore roosevelt theodore ted roosevelt iii september 13 1887 july 12 1944 known as theodore jr was an american government business and military leader he was the eldest son of president theodore roosevelt and first lady edith roosevelt roosevelt was instrumental in the forming of the american legion in 1919 following his valiant service in the united states army during world war i