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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)
APPEARS IN
संबंधित प्रश्न
Give a brief account of discovery of the cell.
All life starts as _________.
What was the contribution of the following to our knowledge of cells?
Schwann
What is a 'cell'?
What is difference between us?
Prokaryotic cell and eukaryotic cell.
Answer the following question.
Why is the cell called the structural and functional unit of life?
Under the microscope, Priya observes a cell that has a cell wall and distinct nucleus. The cell that she observed is
I take part in food production of a cell. Who am I? ____
The Term “ cell” was coined by ______
Make sketches of animal and plant cells which you observe under microscope.
