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प्रश्न
Cell theory was given by
पर्याय
Schleiden and Schwann
Virchow
Hooke
Haeckel
उत्तर
Schleiden and Schwann
Explanation -
The cell theory, that all the plants and animals are composed of cells and that the cell is the basic unit of life, was presented by two biologists, M.J. Schleiden (1838) and Theodore Schwann (1839).
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संबंधित प्रश्न
Arrange in a correct sequence
Hen's Egg, Ostrich's egg, Insect's egg.
______ cells are specialised cells that can be transformed into any kind of cells.
Nowadays an ______ microscope is used to magnify and observe the cells.
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Choose the correct statements.
Match the terms given in column I with their functions given in column II and fill the blanks given below the table :
| Column I | Column II |
| A. Chloroplast | i) carries hereditary characters |
| B. Cell membrane | ii) controls the activities of cells |
| C. Nucleus | iii) site of photosynthesis |
| D. Chromosome | iv) controls the movement of materials into and out of cells. |
A - ______ ; B - ______ ; C - ______ ; D - ______
______ first saw and described a live cell.
What structural and functional attributes must a cell have to be called a living cell?
Define the following term:
Cell
