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  4. The names of Schleiden and Schwann are associated with

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Q. The names of Schleiden and Schwann are associated with

NTA AbhyasNTA Abhyas 2022

Solution:

Cell theory was proposed by Schleiden and Schwann (1839) according to which "All living organisms are composed of cells." Cell theory is also known as cell principle, cell doctrine etc. Rudolf Virchow in 1855, for the first time pointed out that the new cells are formed from the pre-existing cells through division. He modified the cell theory which includes- Cell is the structural and functional unit of life.
1. All organisms are composed of cells and their products.
2. All cells arise from pre-existing cells by cell division.
3. All cells are same in chemical composition.