cell theory

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cell′ the`ory

the tenet in biology that cells are the basic units of structure and function in living organisms.
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Noun1.cell theory - (biology) the theory that cells form the fundamental structural and functional units of all living organisms; proposed in 1838 by Matthias Schleiden and by Theodor Schwann
scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable"
biological science, biology - the science that studies living organisms
References in periodicals archive ?
The researchers are particularly interested in targeting stem cells because, according to cancer stem cell theory, cancerous tumors are driven by cancer stem cells.
explaining cell theory, including developing knowledge of scientific investigations conducted by key historical figures in the field of Science;
Various hypotheses have been postulated to explain the possible pathogenesis which includes the stem cell theory, hostage hypothesis, field effect theory and collision theory.
Even at its earliest stage of development, the microscope was instrumental in the conception of the cell theory of Matthias Schleiden and Theodor Schwann in 1838; it also provided Robert Hooke (1635-1703) with the first observations of individual cells of cork.
The origin of placental teratoma is obscure but germ cell theory is widely accepted2 According to this theory in the early stages of embryogenesis the primitive gut evaginates into the umbilical cord during which time primordial germ cells from the primitive gut migrate through the gut wall and are deposited in the connective tissue of the cord and eventually pass into connective tissue between amnion and fetal surface of
The first section gives a general overview of the links between infection, inflammation, and cancer, as well as stem cell theory and the epithelial-mesenchymal transition.
This reading offers new ways of approaching Lorca's artistic production by revealing the cross-pollination of scientific and artistic awareness in his work, especially in his treatment of the relations between the structures of religious life and cell theory.
Today, cell theory holds that all organisms are made of one or more cells, that the cell is the basic unit of life, and that all cells come from existing cells.