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Aristotle
His works on Generations of Animals raised many questions about reproduction, devolpment and heridity. Aristotle knew it was important to observe organisms, making him approach biology. -
Zacharias Jansen
Dutch spectical makers, Zacharias and Hans, create the first microscope by placing two lenses in a tube. -
Jan Baptist Helmont
He experimented with Spontanious Generation. -
Robet Hooke
Robert Hooke observed things such as cork tissues. Robert was the one to discover plant cells. His results were then published in his book Micrographia. -
Anton van Leeuwenhoek
Anton crated a one lens to examine blood, yeast, insects and many other tiny objects. He was the first person to discribe bacteria and also helped develope more intense magnification. -
Lorez Oken
He believed that all organic beings originate from and consist of vesicles or cells. -
Robet Brown
Discovered the cell nucleus. -
Matthias Schleiden
Created The Cell Theory with Theodor Shwann. -
Albrecht von Roelliker
He realized that sperm cells and egg cells are also cells. -
Rudolf Virchow
Rudolf published his now famous book, "Every Cell Stems from another cell."He belived all diseases involve changes in normal cells. -
Louis Pasteur
He did an experiment containing micro organisms to test whether or not is soup exposed to air only spoiled if the air was not filtered or if the flask containing the soup had an opening that allowed micro organisms to get in the soup. -
Theodor Schwan
Theodor was the discoverer of elemnts and the antidote to arsenic. He discovered the digestive enzyme pepsin. He proposed that all organisms were made of cells. Theodor also formulated the cell theory of life.
