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Louis Pasteur was responsible for the development of the swan knecked flask experiment which effectively disproved the previously accepted theory that cells were spontaneously generated from non-living matter (abiogenisis- without reproduction of cells).
Pasteur was alive from 1822-1895 and during that time people debated the issue with reference to how bacteria and mould could just "appear" on food and drink.
Many believed that just because you boiled some broth and covered it to show that no bacteria grew did not prove that bacteria came flying in through the air,because boiling killed the "active substace" and air was also needed for spontaneous generation of bacteria.
So pasteur developed the swan-knecked flask which allowed air in, but trapped any microorganisms in the bend of the kneck, preventing them from reaching the broth.
He added beef broth to these swan-necked flask, boiled them to kill any microorgansms that may already be present, and left them sitting. Months and months later there was still no growth of bacteria.
But when he broke the kneck of one flask, bacteria grew in the broth within days. Also in another flask, he tilted itover so broth could pour into the bend of the neck then he straightened it again. This flask also had bacterial growthwithin a few days.
The experiment showed that if bacteria -already living cells- were allowed into the broth, then more bacteria could grow, but if they were trapped in the neck and never got to the broth, the broth remained clear and free from bacteria.
It is said there is still a Louis Pasteur swan-necked flask with broth in it, with no bacterial growth in it, this many years down the track.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoSo far it is not possible to create a living cell with out another living cell. you can change the DNA of a living cell. What is life ? is an unanswered question. Life is not just its bio-molecules alone.
Wiki User
∙ 13y agoRudolf Virchow discovered that all living cells are derived from other cells.
Hope that helps
Wiki User
∙ 12y agoRudolph virchow
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All living things come from other living things describes what word?
Cells
What were Rudolph Virchow's contributions to biology?
Rudolph Virchow was one of the 19th centuryâ??s most renowned leaders in medicine and pathology. His greatest accomplishment was the observation that a whole organism does not get sick, only certain cells or groups of cells. He was also contributed to society by being a public health activist, social reformer, politician, and anthropologist.
What are the three parts of the cells theory?
The cell theory states that... 1. All living things are composed of cells. 2. Cells are the basic units of structure and functions in living things. 3. All cells are produced from other cells.
What are three basic ideas of the Cell Theory?
The cell theory is a widely accepted explanations of the relationship between cells and living things.the cell theory statesall living things are composed of cells.cells are the basic unit of structure and function in living things.all cells are produced from other cells
The idea that all living cells come from preexisting living cells was proposed by?
Rudolf Virchow
Who is Walther Fleming?
walther Fleming stated that all living cells come only from other living cells. he stated this in 1879
Living cells come only from existing cells is called?
Living cells only come from preexisting cells is a principle stated in The Cell Theory.
The cell theory as stated by Schleiden and Schwann indicated that membranes form the basis of all cell structure?
All cells are the basic sture and funtion of a living thing all cells come from other cells all living things come from cells
All living things come from other living things describes what word?
Cells
Do cells come from a cell?
yes, that is called cell therory. All living things come from other living things.
Can cells form from nonliving things?
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory. In other words, yes
What are the three main ideas behind cell theory?
All living things are made up of cells Cells are the basic units of functions and structures in all living things and Living cells come only from other living cells.
According to the cell theory where do all cells come from?
According to the cell theory all living cells come from living cells by multiplying.The cell theory states that:All living things are made up of cells.Cells are the basic unit of living things.Cells are always produced from other cells.
Where do cell come from according to the cell theory?
According to the cell theory all living cells come from living cells by multiplying.The cell theory states that:All living things are made up of cells.Cells are the basic unit of living things.Cells are always produced from other cells.
What did virchow add to the cell theory?
Rudolph Virchow added that all cells come from other living cells
What contribution did francisco redi and Louis Pasteur make to the theories of cellular reproduction?
they both found out that living cells only come from other living cells.
What were Rudolph Virchow's contributions to biology?
Rudolph Virchow was one of the 19th centuryâ??s most renowned leaders in medicine and pathology. His greatest accomplishment was the observation that a whole organism does not get sick, only certain cells or groups of cells. He was also contributed to society by being a public health activist, social reformer, politician, and anthropologist.
