cell theory

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Related to cell theory: cell membrane

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 ?
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.
Darrell Coston, Goldsboro High School, Goldsboro, NC In 'The Effects of UV Radiation on Bacterial Cell Growth' lab, Coston's chemistry students utilize Cell Theory with a wide variety of Vernier sensors to conduct an inquiry-based investigation that involves the utilization of UV radiation and its effects on cellular growth.
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.
Some researchers advocate the cancer stem cell theory, which puts forth the idea that cancer is caused by cancer stem cells that possess the same characteristics as stem cells.
In their study, similar TP53 point mutations in squamous cell carcinoma, basaloid squamous carcinoma, and sarcoma suggest these components are clonal, thereby supporting a pluripotential stem cell theory.