Biology Timeline of Cell Theory

By alaneymarieoney
  • 330

    Originator of scientific study of life.

    Originator of scientific study of life.
    REFERENCEIn 330 b.c. Aristotle observed and studies plants and animals. He is recognized as the originator of scientific study of life.

  • The microscope was invented.

    The microscope was invented.
    REFERENCEIn 1995 Zacharias Jansen and his father, Hans invented and built the first microscope.

  • Ideas on Spontaneous Generation

    Ideas on Spontaneous Generation
    http://changedlivestoday.com/_webimages/janbaptista.htmlIn 1608, Jan Baptist van Helmont developed the scientific recipe for mice. He believed that if you put wheat, cheese, and a sweat-soaked shirt in a container and waited 10 days, it would produce mice.

  • Discovery of the first cell.

    Discovery of the first cell.
    REFERENCEREFERENCEIn 1653 Robert Hooke looked at a thin slice of cork through a microscope and discovered little boxes, or what he called "cells,"

  • The first living cell is seen.

    The first living cell is seen.
    [REFERENCE](science.howstuffworks.com/innovation/scientific-experiments/scienific-method4.htm)In 1670 Anton van Leeuwenhoek saw the first live cell under a microscope.

  • All organic beings originate from and consist of vesicles or cells.

    All organic beings originate from and consist of vesicles or cells.
    REFERENCEIn 1805, Lorenz Oken propsed that "All organic beings originate from and consist of vesicles or cells.

  • Discovery of the cell nucleus.

    Discovery of the cell nucleus.
    REFERENCEIn 1831, Robert Brown discovered the cell nucleus in plant cells.

  • All plants, and all the different parts of plants are composed of cells.

    All plants, and all the different parts of plants are composed of cells.
    REFERENCEIn 1838, Matthias Schledien was the first to recognize that all plants and all the different parts of the plant are made up of cells.

  • Animals are composed of cells.

    Animals are composed of cells.
    REFERENCEIn 1839, Theodor Schwann found that animal tissue is composed of cells, which extended Schledien's cell theory to animals. This concluded that that cell is the basic structure for all living things.

  • Sperm and eggs are cells.

    Sperm and eggs are cells.
    REFERENCEIn 1840, Albrecht von Roeliker discovered that sperm and eggs are also cells.

  • Every cell stems from another cell.

    Every cell stems from another cell.
    http://science.howstuffworks.com/innovation/scientific-experiments/scientific-method4.htmIn 1855, Rudolph Virchow discovered that "all living cells must rise from preexisting cells."

  • Disproving Spontaneous Generation

    Disproving Spontaneous Generation
    REFERENCEIn 1862, Louis Pasteur used a swan-neck flask experiment to disprove Spontaneous Generation.