Cell Biology : Evolution of Cell Theory & Cell Theory

Evolution of Cell Theory

• Robert Hooke (1665) Discovered cell
• Robert Brown (1833) discovered nucleus in a cell
• Scleiden & Schwann (1839) proposed cell theory
• Virchow (1855) Cell arise from pre-existing cells

Cell Theory

• Cells are structural & functional units of life
• All organisms are made up of cells
• All cells arise from pre-existing cells only

More Importance things to remember cell theory

• Nucleic acid is the genetic material in all cells
• Cells interact with each other which results in the organism's function
• Basic chemical composition is more/less same in all cells

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