Cell theory
Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells. Cells are the basic unit of structure in all organisms and the basic unit of reproduction.
History
With many improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery was made by Robert Hooke and began cell biology, the scientific study of cells. Cell theory was eventually made in 1838. This is usually credited to Matthias Schleiden and Theodor Schwann.[1]
Cell Theory Media
Human cancer cells with nuclei (specifically the DNA) stained blue. The central and rightmost cell are in interphase, so the entire nuclei are labeled. The cell on the left is going through mitosis and its DNA has condensed.
A reproduction of Anton van Leeuwenhoek's microscope from the 17th century with a magnification of up to 300x
Robert Hooke's microscope setup, as depicted in Micrographia
Drawing of the structure of cork by Robert Hooke that appeared in Micrographia
Matthias Jakob Schleiden (1804–1881)
Theodor Schwann (1810–1882)
A diagram of a typical prokaryotic bacteria cell.
the diagram shows a endomembrane system on a Eukaryote cell.
References
- ↑ "Cell Theory". National Geographic. Archived from the original on 22 Nov 2022. Retrieved 25 Nov 2022.