-
Robert Hooke
Hooke applied his technical abilities to invent ways of controlling the height and angle of microscopes as well as mechanisms of illumination. Variations in light allowed him to see new detail. His technical efforts created magnifications of 50x. When he viewed a thin cutting of cork he discovered empty spaces contained by walls, and called them cells. The term cells stuck and he gained credit for discovering the building blocks of all life. Ignited the spark of cell theory. -
Anton van Leeuwenhoek
Sought the composition of cells, first sightings of cell nuclei. Disproved the fact that cells were empty.Observed dozens of protists, which he called green algae. His discovery helped to form the basis of cell theory and discredit the idea of spontaneous generation. He taught himself methods for grinding and polishing tiny lenses of great curvature which gave magnifications up to 270x diameters. First to see and describe bacteria, yeast plant and the circulations of blood corpuscles. -
Robert Brown
Focused his energy on the process of fertilization in plants, and chose the cells of Asclepiads and orchids to further his study. In them Brown noticed pollen traveling in and out of ovals in their cells, he termed the oval the nucleus. His statements suggested that the nucleus played a key role in fertilization and development of the embryo in plants. Named the nucleus and created the possibility that it was at the center of cellular creation. -
Theodor Schwann
He declared animals and plants are made from one single fundamental unit. He wrote that cells are formed by crystallization of inanimate material inside the cell. He managed to establish the fact that, all things are made of cells, added foundation to the field of biology, and set cells at the center of scientific research. He wrote that cells are present in plants and animals as well as non-living things and that, although there are many different types of cells, they are structurally similar. -
Matthias Schleiden
His methods of studying plants under a microscope led him to propose the cell theory for plants. He was the first to recognize the importance of cells as fundamental units of life. He made observations about plant cells and cell activity and his conclusions marked the beginning of plan cytology. He also recognized the importance of the cell nucleus and sensed its connection with cell division. -
Rudolph Virchow
He proposed that all cells come from pre-existing cells, which became the a key piece of modern cell theory. He founded the discipline of cellular pathology based on the idea that diseases do not affect an entire organism but are instead localized to certain groups of cells. He proposed that all cells arise from other cells. Rather than being formed by the action of a life force or spontaneously crystallizing from other matter, he argued that cells only formed from the division of other cells. -
Citations
N.p., n.d. Web. 4 Oct. 2016. http://www.bookrags.com/. "Weebly Is the Easiest Way to Create a Website, Store or Blog." Weebly.com. N.p., n.d. Web. 04 Oct. 2016. Creekmore, Trisha. "The Science Channel ::100 Greatest Discoveries: Biology." (n.d.): n. pag. Discovery Communication. Web. 4 Oct. 2016. House, Paul. "The Science of Aging." Science of Aging. MasParaSol Media Group Ltd., Sept. 2009. Web. 01 Oct. 2016. "Precenden.com." Precenden.com. N.p., n.d. Web. 02 Oct. 2016. -
Citations 2
"Reference.com - What's Your Question." Reference.com. N.p., n.d. Web. 04 Oct. 2016. Http://www.facebook.com/pages/Aboutcom-Biology/283725581662129. "About Biology: Human Anatomy, Genetics, and Quizzes." About.com Education. N.p., 28 Sept. 2016. Web. 04 Oct. 2016. "Home." Famous Scientists. N.p., n.d. Web. 04 Oct. 2016. DNALC Blogs. N.p., n.d. Web. 04 Oct. 2016. https://www.dnalc.org/resources/. -
Citation 3
"Main Page." Wikipedia. Wikimedia Foundation, n.d. Web. 04 Oct. 2016. https://en.wikipedia.org/wiki/Main_Page. "National Center for Biotechnology Information." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 05 Oct. 2016. http://www.ncbi.nlm.nih.gov/.
