Question

Who discovered nucleus of cell?​

Answer 1

In 1831, Robert Brown discovered the nucleus in the cell.

Answer 2

Answer:-

• Zacharias Jansen credited with 1st compound microscope in 1595.

• Cell was discovered by Robert Hooke in 1665.

• Leeuwenhoek discovered protozoa in 1674.

• Nucleus of cell was discovered by Robert Brown in 1831.

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• Then Cell theory was given by Matthias Schleiden and Theodor Schwann in 1838.

• The term " Protoplasm " was coined by J . E . Purkinje in 1839.

• Albert von Roelliker realized that sperm cells and egg cells are also cells in 1840.

• N. Pringsheim observed how a sperm cell penetrated an egg cell in 1856.

• Rudolf Virchow Updated the cell theory in 1858.

• Kolliker described mitochondria in 1857.

• Flemming described chromosome behavior during mitosis in 1879.

• Camillo Golgi described the golgi apparatus 1898.

• Max Knoll and Ernst Ruska discovered Electron Microscope in 1931.

Cell Theory:-

1. The cell is the structure and functional unit of life.
2. Cell is the smallest unit of life or building block of life.
3. New cells arise from pre existing cells.

Modern Cell Theory:-

1. All known living things are made up of cells.
2. The cell is structural & functional unit of all living things.
3. All cells come from pre-existing cells by division.
4. Cells contains hereditary information which is passed from cell to cell during cell division.
5. All cells are basically the same in chemical composition.
6. All energy flow of life occurs within cells.