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Theory

Cell Theory

Biology

Cell theory is a foundational scientific theory in biology, first formulated in the mid-nineteenth century, holding that all living organisms are composed of cells, that cells are the basic structural and organizational unit of life, and that all cells arise from pre-existing cells.

Facts
Proposed YearSourced to the subject's own account
1839 1
Proposed BySourced to the subject's own account
Matthias Jakob Schleiden and Theodor Schwann 1
Connections

Proposed By

Sources
1. Cell Theory (Wikipedia)
Wikipedia
  • Lead section (entity-description)
    In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
  • Cell theory section, sentence 2
    In 1839, Schleiden suggested
  • Cell theory section, sentence 1
    Credit for developing cell theory is usually given to two scientists: Theodor Schwann and Matthias Jakob Schleiden
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