The
Cell
All living things are
made of one or more cells. There are variety of cell types however, they all have
some common characteristic features.
More
to Know
Can you see a cell with your
naked eye?
Cells are very minute and said to
be microscopic cannot be seen with our naked eyes.
They
can be observed only through a specialized scientific instrument called
“microscope”.
Now a
days an electron microscope is used to magnify the cells and observe the cells
Discovery of the cell
The Englishman
Robert hooke was a scientist, mathematician, and inventor. He improved
microscope which was used in those days, and built a compound microscope. He
placed water-lens beside the microscope to focus the light from an oil-lamp on
specimens to illuminate them brightly. So that he able to see the minute parts
of the objects clearly.
One day Hooke made thin sections of the cork
and observed them through his microscope. He observed many small identical
chambers which were hexagonal in shape. He was surprised.
After that he saw
many objects like Butterfly's wings, Bee’s compound eyes etc.,
Based on this observations Hooke published a
book named Micrographia in the year 1665, where he first used the term Cell .
He describe the structure of tissue using the term cell.
In Latin the word 'cellua' means a small
chamber.
The branch of science that deals with the study of cells is called ‘Cell Biology’.
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