CELL | THE FUNDAMENTAL UNIT OF LIFE | INTRODUCTION | CBSE | CLASS 9TH | NEET FOUNDATION

HISTORICAL BACKGROUND OF CELL
1665 – Robert Hooke discovered cell and coined the term cellula.
1673-1674 – Antonny Von Leeuwenhoek observed bacteria, spermatozoa, RBCs etc.
1682 – Malpighi and Grew laid the foundation of cell concept by writing anatomy of plants wherein they described that tissues contain minute elementary structure (or cells).
1772 – Alfonso Corti observed living matter in the cells.
1781 – F. Fontana discovered nucleolus in skin cell of eel.
1802 – C.F. Mirbel observed that plants are formed by membranous cellular tissue.
1809 – J.B. Lamarck – No body can have life if its constituent parts are not formed of cells.
1824 – R.J.H. Dutrochet boiled Mimosa tissues in nitric acid and inferred that “tissues are really globular cells of an extreme smallness which are united by cohesion”.
1831 – Robert Brown discovered nucleus in cells of Orchid root.
1835 – Dujardin discovered living semi fluid substance of cells and named it sarcode.
1838-1839 – M.J. Schleiden and Theodore Schwann propounded cell theory.
1839 – J.E. Purkinje coin the term protoplasm (supported by Von Mohl)

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