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प्रश्न
What is cell theory? Name the three scientists whose work led to the formulation of the cell theory.
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उत्तर
Cell theory was given by Schleiden and Schwann in the year 1838-1839. It was refined further by Rudolf Virchow.
The main postulates of cell theory are:
- All living beings are made up of one or more cells.
- Cells are the basic structural and functional unit of all living beings.
- All cells are basically alike in chemical composition and metabolic processes.
- New cells arise by the division of pre-existing cells. (Rudolf Virchow)
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संबंधित प्रश्न
Who discovered cells and how?
Make a comparison and write down ways in which plant cells are different from animal cells.
Where are chromosomes found in a cell? State their function.
Differences between light microscope and electron microscope.
A plant cell can be identified from an animal cell by the :
Do you think the cells of an elephant would be larger than the cells of a rat? Explain briefly.
Why was the invention of the microscope so important to the study of living beings?
Who discovered the cell in 1665?
Write about the contribution of Robert Hooke in cell biology.
Robert Hooke published a book named ______ in the year 1665.
