THE CELL
CELL THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells are the basic unit of life.
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Plant cells differ from animal cells.
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All cells come from pre-existing cells.
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Cells are the basic unit of structure and function in living things.
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Detailed explanation-1: -Virchow’s greatest accomplishment was his observation that a whole organism does not get sick-only certain cells or groups of cells. In 1855, at the age of 34, he published his now famous aphorism “omnis cellula e cellula” (“every cell stems from another cell”).
Detailed explanation-2: -Around 1850, a German doctor named Rudolf Virchow was studying cells under a microscope when he happened to see them dividing and forming new cells. He realized that living cells produce new cells through division. Based on this realization, Virchow proposed that living cells arise only from other living cells.
Detailed explanation-3: -Rudolph Virchow (1821-1902) was a German physician, anthropologist, politician and social reformer, but he is best known as the founder of the field of cellular pathology.
Detailed explanation-4: -The following are the contributions of Rudolf Virchow : In 1885, he explained that cells divide and new cells are formed from the pre-existing cells (Omnis cellula-e cellula). He modified the hypothesis given by Schleiden and Schwann as follows: All living organisms are composed of cells and products of cells.