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robert c.hooke
CONTRIBUTION: gave an idea of what the cell looked like and introduced it to the people by calling them "cells" because the empty spaces contained by walls were boxlike and reminded him of cells of a monastery
DISCOVERY METHOD: hooke looked through a microscope of 50x at a thin slice of cork and saw small boxlike structures calling them cells
IMPROVEMENTS:showed people what the cell looked like because they knew that the cell existed before his discovery but they didnt know how the cell looked -
Anton van Leeuwenhoek
CONTRIBUTION:discovered "protozoa" - the single-celled organisms and he called them "animalcules".
METHOD OF DISCOVERY:he discovered protozoa by looking in a microscope at pond water
IMPROVEMENT: by showing that an organism doesnt always have to exist as multicellar; life can exist in a unicellular form -
Henri Dutrochet
CONTRIBUTION:The cell is the fundamental element of
organization for both plants and animals
DISCOVERY METHOD:he discovered his theory by viewing previous models and composing ideas from the concepts of those discoveries
IMPROVEMENT: improved the theory by showing that all living organisms are composed of cells:the cell has many different parts -
Félix Dujardin
CONTRIBUTION:Dujardin was the first to state that cells were not hollow and described about the jellylike material in animal cells and termed it as sarcode
DISCOVERY METHOD:observing the cells under the microscope and seeing the many different small parts IMPROVEMENT: Improved previous by showing that the cell had organizition and the different parts of the cell had different jobs -
Matthias Schleiden
CONTRIBUTION:discovered the plants were made up of cells
DISCOVERY METHOD:by observing parts of a plant under a microscope and seeing that the plant had many different minute parts that it was made up of
IMPROVEMENT:introduced that the cell was the basic unit for plant life -
Theodor Schwann
CONTRIBUTION:discovered that animals were made of cells
DISCOVERY METHODD:observed adult tissues and traced them all the way back to early embryo stages
IMPROVEMENT:both plants and cells are in fact similiar because both of them are made up of cells -
rudolph virchow
CONTRIBUTION:discovered that all cells develope from the cells that already exist
DISCOVERY METHOD:discovred this by observing how disease spread from one cell to other cell throughout the body
iIMPROVEMENT: Improved the idea that diseases can be prevented if the host cell is destroyed before the disease spreads;dsease can be destroyed if the infected cells are destroyed
