-
Robert Hook
Discovered and coined the term "cell"
Looked in a microscope and discovered tiny empty chambers
this new smaller unit of life changed the perspective away from the organism as a whole -
Leeuwenhoek
Discovered single-celled organisms that were previously deemed ridiculous
used a single-lens microscope to observe pond water and water from his mouth
revealed the presence of cells all over the natural world -
Dujardin
discovered a substance called protoplasm inside of cells
studied microscopic animal life present in decaying matter
refuted the fact that smaller organisms were made of the same organs -
Dutrochet
Recognized the similarity of basic processes in organisms and proposed that it was the result of cells
determined that cells were the "building block" of life
studied exchange of gases in atmoshpere and tissue of animals and plants
most basic functions were not carried out by the organs as a whole, but the cells that made up those organs -
Schleiden
concluded that plants were made of cells
studied botany by observing plant structure under a microscope
conc;luded that all parts of an organism were made of cells, not just some parts -
Schwann
cocluded that animals were also made of cells and applied to the same cell theory
he observed yeast spore formation and claimed it a life proccess
added animals to the cell theory he formed with Schleiden -
Virchow
He is credited with claiming that cells are only formed from other cells and the idea that diseses are originated in the cell
studied pathogenic organisms
disproved the theory that cells were formed from crystallation
