What was Rudolf virchow's contribution to the cell theory?

Answer 1

In 1838, Theodor Schwann and Matthias Schleiden were enjoying after-dinner coffee and talking about their studies on cells. It has been suggested that when Schwann heard Schleiden describe plant cells with nuclei, he was struck by the similarity of these plant cells to cells he had observed in animal tissues. The two scientists went immediately to Schwann's lab to look at his slides. Schwann published his book on animal and plant cells (Schwann 1839) the next year, a treatise devoid of acknowledgments of anyone else's contribution, including that of Schleiden (1838). He summarized his observations into three conclusions about cells:

1. The cell is the unit of structure, physiology, and organization in living things.
2. The cell retains a dual existence as a distinct entity and a building block in the construction of organisms.
3. Cells form by free-cell formation, similar to the formation of crystals (spontaneous generation).

We know today that the first two tenets are correct, but the third is clearly wrong. The correct interpretation of cell formation by division was finally promoted by others and formally enunciated in Rudolph Virchow's powerful dictum, Omnis cellula e cellula...: "All cells only arise from pre-existing cells".

The modern tenets of the Cell Theory include:

1. All known living things are made up of cells.
2. The cell is structural & functional unit of all living things.
3. All cells come from pre-existing cells by division. (Spontaneous Generation does not occur).
4. Cells contains hereditary information which is passed from cell to cell during cell division.
5. All cells are basically the same in chemical composition.
6. All energy flow (metabolism & biochemistry) of life occurs within cells.

Answer 2

He was a German physician who proposed the idea that new cells are formed only from the per-existing cells.

Answer 3

He Discovered that Cells Reproduce by Cells.

Answer 4

Virchow discovered that cells come only from other cells.

Answer 5

Conclued that new cells could be produced only from division of existing cells

Answer 6

new cells can be produced only from the division of existing cells.

Answer 7

Virchow proposed that new cells are formed from cells that are exist. "All cells are from cells" said Virchow