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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
Which part of the cell contains organelles?
The cell organelle that helps in the respiration of the cell is :
Fill in the blanks:
Organisms which are made up of a single cell are called ______ organisms.
What is the function of the following?
Cell membrane
Fill in the blank with a suitable word:
The single-celled alga ______ measures 10 cm in length.
Fill in the blank with a suitable word:
DNA is an abbreviated form of ______.
What is difference between us?
Plant cell and animal cell.
Nerve cell is the longest cell
New cells are produced from the existing cells.
Robert Hooke saw many objects like Butterfly’s compound eyes, Bee’s wings, etc.
