AP BIOLOGY

Detailed explanation-1: -The third part, which asserts that cells come from preexisting cells that have multiplied, was described by Rudolf Virchow in 1858, when he stated omnis cellula e cellula (all cells come from cells).

Detailed explanation-2: -Virchow used the theory that all cells arise from pre-existing cells to lay the groundwork for cellular pathology, or the study of disease at the cellular level. His work made it more clear that diseases occur at the cellular level. His work led to scientists being able to diagnose diseases more accurately.

Detailed explanation-3: -’Omnis cellula e cellula, ’ according to Rudolf Virchow, signifies that new cells are formed via the division of pre-existing cells. The discoveries of Rudolf Virchow have changed the cell hypothesis.

Detailed explanation-4: -Virchow’s theory stated that just as animals are unable to arise without previously existing animals, cells are unable to arise without previously existing cells. The idea that new cells arose from pre-existing cells in both diseased and healthy tissue was not original.

Detailed explanation-5: -Schwann blended both statements into one theory which said 1) All living organisms consist of one or more cells and 2) The cell is the basic unit of structure for all living organisms. In 1845, the scientist Carl Heinrich Braun revised the cell theory with his interpretation that cells are the basic unit of life.