Question

What is cell theory?

Answer 1

Cell theory is written by MJ Schleiden, T Schwan and Rudolf Virchow.
It states that :
1).All living beings are made up of cells.
2). Cell is basic structural and functional unit of life.
3). All cell arises from there pre-existing cells by cell division.

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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