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Cell...The Wonderful Origins of the "Cell" Concept

The history of how we obtained the Cell Theory. A look at scientists and their contributions along with technology then and now.

Joshua King

on 12 September 2011

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Transcript of Cell...The Wonderful Origins of the "Cell" Concept

Spontaneous Generation is the accepted theory as to how life originates. Spontaneous Generation: life forming from non-living things rotten meat then you get maggots This doesn't mean that people were unintelligent back then.... they just didn't have the technology that allowed insight to the microscopic world They gave it their
best educated guess also known as... So... How did we come to understand the cell?

How do we know that the cell is the basic unit of ALL life?

Why don't we still think life spontaneously generates? These people are how I call the...

MVP's of The Cell Theory

1. Robert Hooke
2. Antoni Van Leeuwenhoek
3. Theodor Schwaan
4. Mattias Schleiden
5. Rudolf Virchow Robert Hooke He was the first person to observe cells. He named them " cellulae" by their shapes he saw in a cork...

Cellulae is latin for small rooms. Anton van Leeuwenhoek was a clothes merchant
used mircoscopes to check quality of clothes
first to observed live cells...he described what he in a drop of pond water
He improved the microscope greatly (some could magnify about 250 times)
Also gave us Hooke's law for a spring: (used in physics!)
F=-kx Vitalism, as defined by the Merriam-Webster dictionary, is

a doctrine that the functions of a living organism are due to a vital principle distinct from biochemical reactions.

a doctrine that the processes of life are not explicable by the laws of physics and chemistry alone and that life is in some part self-determining Theodor Schwann wait wait wait... the tissues of animals also have cells (1839) a picture of his "rebreather" Matthias Schleiden German botonist, observed that the tissues of plants contained cells ( 1845) Thus, Schleiden and Schwann became the first to formulate what was then an informal belief as a principle of biology equal in importance to the atomic theory of chemistry Rudolf Virchow also reported that every living thing is made of up vital units, known as cells.

He went on and said "Omnis cellula e cellula" (1850)
What did we learn about last week? Schleiden stated that cells are the basic building blocks of plants German biologist In other words...
These two crazy Germans said
1) All life is made of cells
2) Cells are the most basic unit of life another German Cells come from existing cells Adding together what these scientists discovered... Spontaneous Gerneration was disproved and the "Cell Theory" was accepted. The Cell Theory
1) All living things contain cells
2) Cells are the basic unit of life
3) Cells come from pre-existing cells
Full transcript