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Cell Theroy - shelly 1st period
Transcript
The Cell Theroy
Presented by Katie Jeremay for 1st period biology
Tecnology
Compound light microscope
- utilizes a series of glass lenses and visable lights to magnify an image
- origanial copy was invented by Zacharias Jansen in the 1590's and then from there people improved it
The CellMist System (the skin gun)
- harvests a patient's stem cells from a small area of unwounded skin (usually one square inch) and puts them in a water-based solution
- SkinGun sprays the solution onto the wound, where new skin begins to grow at the cellular level
- this product is still experimental but has great possibliity and future
- © Copyright 2017 RenovaCare, Inc.
Scientists
Robert Hooke
- used the light microscobe to view dead cells in a cork (1655)
- best known for his law of elasticity (Hooke's law), his book Micrographa and for first applying the word "cell"
Robert Hooke
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Anton Van Leeuwenhoek
- observed living cells (1673) and called them "animalcules" (now they are called microorganisms)
- worked with the compound microscope
- first to record and observe muscle fibres, bacteria, and blood flow in small blood vessels
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Matthias Schleiden
- came up with what we know today as the cell theroy
- concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell
- He declared that the cell is the basic building block of all plant matter. (1838)
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Theodor Schwann
- determined that all animals are made up of cells, ending the therory that plants and animals were made up of different things (1839)
- While studying animal cells, he discovered pepsin, the digestive enzyme, the stomach epithelium, and membrane tissues of animals.
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Rudolf Virchow
- worked with diseased tissue and determined that cells come from cells (1855)
- first to conclude that the cell thory can work for diseased and healthy tissue
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Scientist part 2
Francesco Redi
- disproved the hypothises of the spontanous generation* of flies on meat (1668)
- proved that life comes from life
* means that life can come from non-living things
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Louis Pasteur
Pasteurized wine, milk, disproved spontaneous generation of microbes*, discovered several bacterial pathogens** (1861)
*a microorganism
**a bacterium, virus, or other microorganism that can cause disease.
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