Question

Definition of cell theory

Answer 1

Theodore Schwann,Schleiden and Rudolf Virchow are scientists gave shape of cell theory
1.Cell is fundamental unit of structure and function in all living organisms
2.All cells arises from pre existing cells by division(omnis cellula e cellula)

Answer 2

Two Germans M.J. Schleiden (Botanist in 1838) and Theodor Schwann (Zoologist in 1839) collectively formulated the cell theory.

And in 1855 a German physiologist, Rudolf Virchow proposed this.

He gave the phrase : "Omnis-cellula-e-cellula".

This phrase means- All cells arise from pre existing cells .

Cell theory features :

• Cell is the basic unit of structure of plants and animals both.

• It is the basic unit of function as well as the metabolic reactions take place inside the cell.

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