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प्रश्न
Living cells were discovered by
विकल्प
Robert Hooke
Purkinje
Leeuwenhoek
Robert Brown
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उत्तर
Leeuwenhoek
Explanation -
Cells were first discovered by Robert Hooke in 1665. He observed the cells in a cork slice (dead cells) with the help of a primitive microscope. Leeuwenhoek (1674), with the improved microscope, discovered the free-living cells in pond water for the first time. Robert Brown (in 1831) discovered the nucleus in the cell. Purkinje (in 1839) coined
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संबंधित प्रश्न
Somatic and stem cells undergo ______ type of division.
What is the direct cell division? Explain with an example.
Name the two kinds of cell division found in living organisms.
Name the following:
The process by which cell divides into two equal daughter cells.
State the characteristics of step of cell division shown in figure.
Nerve cell does not contains ______.
Name the organelles which show the analogy written as under
Control room of the cell——
The disappearance of spindle fibers is seen in ______.
Explain amitosis.
Give scientific reason.
Cell division is one of the important properties of cells and organisms.
