Cell Theory PDF
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This document details the history of the discovery of the cell and the cell theory. It discusses the key figures involved in the development of this theory, such as Robert Hooke, Matthias Schleiden, Theodor Schwann, and Rudolf Virchow. The document explains the significance of these findings, stating that all living organisms are composed of cells, and cells come from pre-existing cells.
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Cell basic structural and functional unit of life Cytology study of cells Discovering the Cell Who coined the term ‘cell’ and how did he discover it? Timeline in the 1665 Robert Hooke Discovery of Cells, discover...
Cell basic structural and functional unit of life Cytology study of cells Discovering the Cell Who coined the term ‘cell’ and how did he discover it? Timeline in the 1665 Robert Hooke Discovery of Cells, discovered tiny the Organelles, compartments in a thin and Some Cellular slice of cork which he called “cells” Processes 1833 Robert Brown studied and described the nucleus as a constant component of cells 1835 Timeline in the Felix Dujardin Discovery of Cells, discovered protoplasm the Organelles, that fills the entire cell, and Some Cellular which is actively flowing or streaming Processes 1837 Hugo von Mohl discovered and described the chloroplasts 1857 Timeline in the Discovery of Cells, Albert von Kölliker the Organelles, discovered and Some Cellular mitochondria Processes 1838 Matthias Schleiden examined several plant parts and concluded “all plants are made up of cells” Timeline in the 1839 Theodor Schwann Discovery of Cells, examined several animal the Organelles, parts and concluded and Some Cellular “all animals are made up of cells” Processes 1855 Rudolf Virchow discovered cell division and proposed that “cells come from pre- existing cells“ 1878 Timeline in the Walther Flemming Discovery of Cells, the Organelles, discovered asters and chromatins in a dividing and Some Cellular cell Processes 1883 Pierre-Joseph van Beneden discovered meiosis as he was observing the egg cell and sperm cell of worms 1898 Timeline in the Camillo Golgi Discovery of Cells, discovered the the Organelles, Golgi apparatus while and Some Cellular studying the cross- section of a spinal cord Processes 1902 Emilio Veratti discovered the endoplasmic reticulum while observing a striated muscle cell Timeline in the 1954 Discovery of Cells, Johannes Rhodin discovered the Organelles, microbodies from the and Some Cellular kidney cells of mice Processes 1955 Dr. Christian de Duve discovered lysosome while studying the action of insulin on liver cells The Cell Theory Rudolf Virchow Theodor Schwann Matthias Schleiden 1836 The Cell Theory Theodor Schwann Matthias Schleiden The cell is the unit of structure and function of all plants and animals and that cells form freely similar to how crystals form. 1858 The Cell Theory Rudolf Virchow While observing cells under the microscope, he saw some of them dividing and forming new cells. “All cells arise form pre-existing cells” (omnis cellula e cellula) The Cell Theory All organisms are composed of cells. The cell is the unit structure and function af all living things. Cells come from pre-existing cells.
