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Hooke's discovery of the cell
Hooke found the cell while testing the microscope and saw that a piece of cork had pores, or holes, which resembled chambers that monks would live inside of, but didn't know parts or functions of the cell. -
Leeuwenhoek's discovery
Leeuwenhoek used lenses to further enhance the picture up to 270x, which makes it more practical to use. Using his microscope, he went to a pond to use his microscope when he discovered single-celled organisms in the pond, which proves that you do not need to be multi-celled organism to live. -
Brown's observation of the plant cell
Brown discovered the nucleus in plant cells, and studied over 1,700 different plant species while in Australia. He had his book published in 1833, not knowing that animal cells have a nucleus also. -
Schleiden's plant observations
Schleiden observes plants and sees that they are made of cells, the building blocks of plants. -
Schwann's cell discovery on animal cells
Schwann concluded that animals and plants have cells, but are fundamentally different from each other, in structure. he concluded that all animals are made of one or more cells, and cells are the basic unit that makes up organisms. -
Virchow's theory of cells
Virchow proposed that all cells came from preexisting cells. He also concluded that diseased cells come from healthy cells. He said that cells form by division of preexisting cells.
