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Zacharias Jansen invented the Microscope
He was the first one, although many other people followed.
https://bitesizebio.com/166/history-of-cell-biology/ -
Robert Hooke named the cell "cell" and discovered the cell.
He was looking at a piece of cork and saw the chambers in it. He thought of how Monks lived in cells. https://www.science-of-aging.com/timelines/hooke-history-cell-discovery.php -
Anton Van Leeuwenhoek discovered bacteria
Made a microscope and looked at his dental scrapings and saw bacteria. He called them animalcules. https://www.britannica.com/biography/Antonie-van-Leeuwenhoek -
Matthias Schleiden
He realized that plants are made of cells. He began a new age of plant cytology. https://cellltheory.weebly.com/matthias-schleiden.html -
Theodor Schwann
Discovered that all animals have cells. He decided that it was the most basic structure in animals. He did this by studying the stomach of animals and figuring out what helps them digest. He discovered an enzyme called pepsin. https://www.britannica.com/biography/Theodor-Schwann -
Robert Remak
Discovered nerve cells in the heart. He also discovered the germ layers of the embryo. -
Rudolf Virchow
He published papers about cell theory and revolutionized biology. https://www.britannica.com/biography/Rudolf-Virchow -
Gregor Mendel Published His Discoveries
He discovered genetics and is considered to be the Father of Genetics. He ran many experiments on pea plants. He did not get recognized until well after his death. https://www.thecompleteuniversityguide.co.uk/courses/biological-sciences/10-famous-biologists-and-their-discoveries/?entry=7