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Robert Hooke
Robert Hooke is the man who came up with the word cell when observing dead plant tissue on a piece of cork. He named them cells because the honeycomb-structured cavities looked like jail cells stacked together, or a monk's monastery. -
Anton von Leeuwenhoek
Anton van Leeuwenhoek saw bacteria using a simple microscope of his own invention on some algae on pond water. This was one of two ways he discovered bacteria -
Anton von leeuwenhoek
Anton von Leeuwenhoek discovered bacteria in the grime on his teeth using the same little microscope. He named the bacteria "animalcules" because they looked like little animals. This was the second way he discovered bacteria -
Robert Brown
Robert brown was a Scottish botanist who saw the nucleus of the plant cell and named it. He also described it. -
Felix Dujardin
Felix Dujardin discovered the gelatinous liquid inside of a cell (cytoplasm). He also discovered a new group of single celled organisms (which was called rhizopoda and later changed to protozoa) He created the basis for parasitology -
Matthias Schleiden
Matthias Jacob Schleiden was a german botanist that proposed that all plant tissue was made of cells. He also proposed that cells were the basic building blocks for all plants. -
Theodor Schwann
Theodor Schwann Found that both plant and animals were composed of cells. He worked with Matthias Schleiden. He also created the first two rules for the cell theory, which were that all organisms were composed of one or more cells, and that the cell is the basic unit of structure in all organisms -
Rudolf Virchow
Rudolf Virchow developed the third part of the cell theory, which is that all cells come from preexisting cells. He debunked the "Free Cell Formation" theory, created by Matthias Schleiden
