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Oct 1, 1519
light microscope
The optical microscope, often referred to as light microscope, is a type of microscope which uses visible light and a system of lenses to magnify images of small samples. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
This is important because it is how we can see cells and without it, no discoveries could have been made because we would not be able to see anything cell wise. -
Discovery and Naming of the Cell
the cell of a cork -
Discovery and Naming of the Cell
The discovery of the cell leads to the discovery of bacteria and without the discovery of bacteria we would never have discovered disease and antibiotics. Without these discoveries, we would all most likely die after a couple of days of having even the slightest cold. -
Discovery and Naming of the cell
Robert Hooke, an English scientist, discovered a honeycomb-like figure in a piece of cork using a compound microscope. The only thing he saw was the dead tissue and this is the cell wall. He created the term "cell" for these individual compartments he saw. -
Cell theory
Cell theory is a scientific theory which describes the properties of cells and These cells are the basic unit in all organisms and also the unit of reproduction.
This is important because it is the reason we can expand technology and expand the knowledge that we have about the human so we can find cures for things like cancer. -
Bacteria Discovery
a picture of the microscope he used -
Bacteria Discovery
This was important because it could then later on teach us about disease. This could then prevent people from dying prematurely. -
Bacteria Discovery
Anton van Leeuwenhoek looked at pond water with a microscope he made lenses for and Among this was when the first protozoa and bacteria discovered. -
Cell Nucleus
Robert Brown, who was from England, discovered the nucleus of a cell -
Cell Nucleus
This was an important discovery because cells are in everything and this could help us make the periodic table. -
plant tissue
Matthias Jakob Schleiden, proposes that all plant tissues are composed of cells, and that cells are the basic building blocks of all plants. -
Plant tissue
A picture of plant tissue -
Animal tissue
Theodor Schwann, a German botanist reached the conclusion that not only plants, but animal tissue as well is composed of cells.: 1 - Cells are organisms and all organisms consist of one or more cells 2 - The cell is the basic unit of structure for all organisms. -
Animal Tissue
an example of another organism -
Animal tissue
This is important because we could then realize that plants are living things and that we could then uses plants as experiments when it calls for living things so we don’t have to kill animals. -
Animal Tissue
an example of an organism -
Sperm and Egg cells
Albrecht von Roelliker discovered that sperm and eggs are also cells. -
Sperm and Egg cells
This is important because we can now see that eggs and sperms are living -
Third part of Cell Theory
Rudolf Virchow, a German physiologist/physician/pathologist created the 3rd part to the cell theory; all cells develop only from existing cells. Virchow was also the first to address that diseased cells come from healthy cells. -
Third Part of Cell Theory
Virchow launched the field of cellular pathology. He stated that all diseases involve changes in normal cells, that is, all pathology ultimately is cellular pathology. This insight led to major progress in the practice of medicine. It meant that disease entities could be defined much more sharply -
Elerton microscope
The electron microscope is a microscope that uses a beam of electrons to create an image of the specimen.
This was important so that’s we could get more in-depth about cells, electrons, and atoms. This can lead us to a better understanding of the periodic table.
