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.
Mini Bio (1). Theodore Roosevelt was born on October 27, 1858 in New York City, New York, USA as Theodore Roosevelt Jr. He was a writer, known for Theodore Roosevelt (1898), Colonel Theodore Roosevelt's Expedition Into the Wilds (1918) and Pres. Roosevelt at the Dedication Ceremonies, St. Louis Exposition (1903).ini Bio (1). Theodore Roosevelt was born on October 27, 1858 in New York City, New York, USA as Theodore Roosevelt Jr. He was a writer, known for Theodore Roosevelt (1898), Colonel Theodore Roosevelt's Expedition Into the Wilds (1918) and Pres. Roosevelt at the Dedication Ceremonies, St. Louis Exposition (1903).