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Cell theory, fundamental scientific theory of biology according to which cells are held to be the basic units of all living tissues. First proposed by German scientists Theodor Schwann and Matthias Jakob Schleiden in 1838, the theory that all plants and animals are made up of cells marked a great.
Cell theory is a proposed and widely accepted view of how most life on Earth functions. According to the theory, all organisms are made of cells. Groups of cells create tissues, organs, and organisms. Further, cells can only arise from other cells. These are the main tenants of cell theory.
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.
The meaning of CELL THEORY is a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells.
Cell Theory. Scientists once thought that life spontaneously arose from nonliving things. Thanks to experimentation and the invention of the microscope, it is now known that life comes from preexisting life and that cells come from preexisting cells.
What is the cell theory. What are its three components. What are the contributions from Matthias Schleiden, Theodor Schwann, & Robert Hooke. Learn modern cell theory.
A cell theory is a scientific theory stating that: All living things are made up of one or more cells. The cell is the structural and functional unit of all living things.