Tuesday 19 March 2013

Cells and History of Cells(Useful information)

Cell
Information about Cell (Useful information)


Cell is a basic structural and fictional unit of all things that living in organism, it is also the most smallest thing unit of life that is classified as a living thing. Except viruses which they consists only from DNA or RNA covered by protein and lipids and is often called the building of life. 

Organisms can be classified as unicellular, which consisting of a single cell, including the most bacteria, or multicellular, including plants and animals. Us humans contain about 100 trillion cells or so, most plant and animals cells are between 1 and 100 micrometers and therefore are visible only under microscope only, its impossible to see those without an engine that could zoom in.


History about Cells
                                                                 History of cells(Useful information)



Cells emerged on planet earth at least 4.0–4.3 billion years ago, so they are pretty old from the existence. The cell was discovered long ago by Robert Hooke in year 1665, so is pretty hard at that time that for someone even with not much of engine could discovere such a thing. The cell theory, first developed in 1839 that at that years was still early for some machine to help, but we had something at that time, this was discovered by Matthias Jakob Shkeiden and Theodor Schwannm, states that all organsims are composed for one or more cells, that all cells come from "Pre-existing cells", that a vital functions of an organsims occur within cells, and that all cells contain the hereditary information necessary for a regulating cells function and for transmitting information to the next generation of cells, like us humans tell stories to the younger nce's for spreading them for the new generations. 

The world cell comes from the Latin "Cella", meaning "Small room". the descriptive term for the smallest living biologicial strucutre was coined by  Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.


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