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Period: to
time line of cell theory
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robert hooke
he observed a cork and created the term cells by looking through a microscope -
marcello malpighi
Marcello malpighi observed for the first time the blood capillaries in fish tails -
Leeuwenhoek
leeuwenhoek discovered protozoa, bacteria and yeast -
Leeuwenhoek makes better lense
able to observe microorganisms including bacteria -
better stains, waxes for sectioning slides
Better slide preperation for microscope, discoveries were made of bacteria and on the apparatus in cells -
Schleiden
investigated further into the research of the nucleus and cells in plants. -
Schwann
Investigated animal cells and realised they were made of the same structures that schleiden theory had -
Remark, Virchow, Kolliker
discovered that cells are formed through divisions of pre-existing cells -
pasteur
discovered the idea of spontaneous generation -
Pringsheim
observed fertilisation -
flemming
described chromosome behaviour in mitosis -
various biologists
Mitochondria and chloroplasts were discovered. The electron microscope helped to observed proteins and DNA, Viruses were also explored more -
electron microscope was developed
much greater magnification and resoulution of images -
Behrens/centrifuge
The centrifuge enabled the seperation of cell nuclei. Cells were organised by size, shape and density, using the centrifuge -
siemens
The first transmission electron microscope was released. The expension of electron microscope began. Observations were made which helped understand how cells work -
freeze fracture is developed
allowed transmission electron microscopes to look at the structure of cell membranes which contributed towards a better understanding
