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Class 8 Science Cell Exam Notes. Please refer to the examination notes which you can use for preparing and revising for exams. These notes will help you to revise the concepts quickly and get good marks.
Cell is the functional & structural unit of life as all the metabolic activity takes place in a cell.
The study of structure & composition of cell is known as cytology.
Robert Hooke used a primitive compound
microscope to examine thin slices of cork from the bark of an oak tree.
He observed the hollow box like structure similar to honey comb for which he coined the term 'cell'.
Unicellular Organisms :
In these organisms, all the function like nutrition, respiration, excretion & reproduction are carried out by the single cell.
Example → Amoeba.
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