who proposed the cell theory
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Answer:
Explanation:
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, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1839. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. It was an important step in the movement away from spontaneous generation.
The cell theory is credited to the work of Theoder Schwann and Matthias Jakob Schleiden in the 1830's.
By the late 1830's botanist Matthias Jakob Schleiden and zoologist Theodar Schwann were studying tissues and proposed the unified cell theory .
The unified cell theory states that :
- all living things are composed of one or more cells
- the cell is basic unit of life
- new cells arise from existing cells