who proved that cells come from other cells
Matthias Schleiden Robert Hooke Robert Remak Theodor Schwann Rudolf Virchow
title: Cell theory text: developing cell theory is usually given to two scientists: Theodor Schwann and Matthias Jakob Schleiden. While Rudolf Virchow contributed to the theory, he is not as credited for his attributions toward it. In 1839, Schleiden suggested that every structural part of a plant was made up of cells or the result of cells. He also suggested that cells were made by a crystallization process either within other cells or from the outside. However, this was not an original idea of Schleiden. He claimed this theory as his own, though Barthelemy Dumortier had stated it years before him. This crystallization process title: Robert Remak text: Robert Remak Robert Remak (26 July 1815 – 29 August 1865) was a Jewish Polish-German embryologist, physiologist, and neurologist, born in Posen, Prussia, who discovered that the origin of cells was by the division of pre-existing cells. as well as several other key discoveries. According to historian Paul Weindling, Rudolf Virchow, one of the founders of modern cell theory, plagiarized the notion that all cells come from pre-existing cells from Remak. Remak had reached the conclusion after observing red blood cells from chicken embryos in various stages of division. He then confirmed that the phenomenon existed in the cell of title: Cell theory text: Cell theory In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, title: Theodor Schwann text: be classified in terms of five types of highly differentiated cellular tissues. His observation that the single-celled ovum eventually becomes a complete organism, established one of the basic principles of embryology. Schwann's third tenet, speculating on the formation of cells, was later disproven. Schwann hypothesized that living cells formed in ways similar to the formation of crystals. Biologists would eventually accept the view of pathologist Rudolf Virchow, who popularized the maxim "Omnis cellula e cellula"—that every cell arises from another cell—in 1857. The epigram was originally put forth by François-Vincent Raspail in 1825, but Raspail's writings were unpopular, partly due title: Cell (biology) text: contain more than 10 trillion (10) cells. Most plant and animal cells are visible only under a microscope, with dimensions between 1 and 100 micrometres. Cells were discovered by Robert Hooke in 1665, who named them for their resemblance to cells inhabited by Christian monks in a monastery. 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, and that all cells come from pre-existing cells. Cells emerged on Earth at least