Basic unit of life
The cell theory begins with Robert Hooke and his observations of cork with a microscope, identifying individuals cells within its structure in 1665. Though, Hooke is not credited with the discovery of cell theory, he contributed the term "cell" and the first findings in the the development of cell theory, which was discovered by Matthias Schleiden in 1838. Theordor Schwann then related cell theory to animal structures.
All organisms are composed of one or more cells. New cells emerge from already existing cells. These cells pass along hereditary information during cell division. Cells are composed of plasma membranes, cytoplasm, and DNA. There are many different sizes and types of cells in all living organisms. The use of cell theory has lead many scientist in the discovery of our modern day science (3).
The cell theory begins with Robert Hooke and his observations of cork with a microscope, identifying individuals cells within its structure in 1665. Though, Hooke is not credited with the discovery of cell theory, he contributed the term "cell" and the first findings in the the development of cell theory, which was discovered by Matthias Schleiden in 1838. Theordor Schwann then related cell theory to animal structures.
All organisms are composed of one or more cells. New cells emerge from already existing cells. These cells pass along hereditary information during cell division. Cells are composed of plasma membranes, cytoplasm, and DNA. There are many different sizes and types of cells in all living organisms. The use of cell theory has lead many scientist in the discovery of our modern day science (3).
Sources:
1) Britannica, T. E. (2014, November 11). Matthias Jacob Schleiden . Retrieved August 31, 2017, from Encyclopædia Britannica: https://www.britannica.com/biography/Matthias-Jacob-Schleiden
2) Britannica, T. E. (2017, March 22). Theodor Schwann. Retrieved August 31, 2017, from Encyclopædia Britannica: https://www.britannica.com/biography/Theodor-Schwann
3) Microbiology Online Textbook (OpenStax) p. 94-95
4) Underwood, E. A. (2016, March 21). Rudolf Virchow. Retrieved August 31, 2017, from Encyclopædia Britannica: https://www.britannica.com/biography/Rudolf-Virchow
Images:
http://www.publicdomainpictures.net/view-image.php?image=42719
https://commons.wikimedia.org/wiki/File:Matthias_Jacob_Schleiden.jpg
https://commons.wikimedia.org/wiki/File:PSM_V37_D156_Theodore_Schwann.jpg
https://commons.wikimedia.org/wiki/File:Rudolf_Virchow_NLM3.jpg
1) Britannica, T. E. (2014, November 11). Matthias Jacob Schleiden . Retrieved August 31, 2017, from Encyclopædia Britannica: https://www.britannica.com/biography/Matthias-Jacob-Schleiden
2) Britannica, T. E. (2017, March 22). Theodor Schwann. Retrieved August 31, 2017, from Encyclopædia Britannica: https://www.britannica.com/biography/Theodor-Schwann
3) Microbiology Online Textbook (OpenStax) p. 94-95
4) Underwood, E. A. (2016, March 21). Rudolf Virchow. Retrieved August 31, 2017, from Encyclopædia Britannica: https://www.britannica.com/biography/Rudolf-Virchow
Images:
http://www.publicdomainpictures.net/view-image.php?image=42719
https://commons.wikimedia.org/wiki/File:Matthias_Jacob_Schleiden.jpg
https://commons.wikimedia.org/wiki/File:PSM_V37_D156_Theodore_Schwann.jpg
https://commons.wikimedia.org/wiki/File:Rudolf_Virchow_NLM3.jpg