Cells contain hereditary information.
Cell theory , first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann , states that all organisms are composed of one or more cells , that cells are the fundamental unit of structure and function in all living organisms , that all cells come from preexisting cells , and that all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells .	living	Life	Cell theory	Cell theory	Matthias Jakob Schleiden	Matthias Jakob Schleiden	Theodor Schwann	Theodor Schwann	hereditary information	genetics
