What do you mean by cell theory.

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History of cell theory:-

What do mean by cell theory






.Cytology is the scientific study of structure of the cell.
.Cell biology is the scientific study of all aspects of cell like morphology ,physiology,biochemistry,genetics.
.Cork is obtained from the bark of cinchona plant.
.Not only the onion bulbs, all organisms are cellular in nature.
.Small sized cells have more surface area volume ratio and are more metabolically active than large sized cells.
.Nucleus and cytoplasm together constitute the protoplasm.
.Huxley called the protoplasm as ''physical basis of life''.

.Modified cell theory is called ''CELL PRINCIPLE''which states :-=Cell is the structural unit of life.=Cell is the functional unit of life.=New cells are formed by growth and division of pre-existing cells..Microscopes are optical instruments to study cellular details of living organisms.


.Light microscope was invented by Jansen and Jansen:-It is the employed to study the general structure of cells/tissues after their staining and with the help of glass lenses.These all are given by many biological scientist are as:-.Aristole conclude that all the animals and plants are formed of repeating elements.He is commonly called "Father of biology''.


Cell shape:-
Shape of the cells mainly depends upon the specific function it performs:

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