Download Cell Theory

Cell Theory
search
Cell theory is a scientific theory that is one of the foundations of biology.
The generally accepted parts of cell theory include:






The cell is the fundamental unit of structure and function in living
things.
All organisms are made up of one or more cells.
All cells come from pre-existing cells through cellular division.
Cells carry genetic material passed to daughter cells during cellular
division.
All cells are essentially the same in chemical composition.
Energy flow (metabolism and biochemistry) occurs within cells.
The three main parts of the Cell theory are:
1. All living organisms are composed of one or more cells.
2. The cell is the basic unit of the organization of living things.
3. All cells come from pre-existing cells.
The cell theory was originally developed by Theodor Schwann, and fully
accepted by the work of Louis Pasteur, specifically his work regarding
microbes. Cells are a basic unit of Biology.
The Cell was first discovered by Robert Hooke in 1663. He remarked that it
looked strangely similar to cells in which monks inhabit. However what he
actually discovered was a part of a cork (or dead plant) and what he was
looking at was the empty cell walls with no nucleus in the center. The first
man to witness a live cell under a microscope was Anton Van Leeuwenhoek
in 1673.