Cell Theory

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    Aristole

    Aristole
    He proposed spontaneous generation. It comcluded that objects were made up of a potential that circumstances then manipulated to determined the object's outcome.
  • Zacharias Jansen

    Zacharias Jansen
    He made the compound microscope. His inovention helped make it possible to prove spontaneous generation wrong, by making it possible to discover and view cells.
  • Jan Baptist van Helmont

    Jan Baptist van Helmont
    His idea and experiment was that if you put dirty shirts and wheat seeds for twenty-one days you'd get mice. His experiment helped spontaneous generation because his experiment he got mice from dirty shirts, wheat seeds, and twenty-one days.
  • Robert Hooke

    Robert Hooke
    He was the first person to discover cells and he also named them. It later on rejected spontaneous generation because scientists discovered cells come from already existing cells.
  • Lorenz Oken

    Lorenz Oken
    He thought plants and animals are made up of tiny living "infusoria". His idea led to rejection of spontaneous generation because it led to the cell theory.
  • Robert Brown

    Robert Brown
    He found cells contained opaque spots and used the term areola to describe them, he further noted the spot was not limited to the eipidermis and he sensed that the spot was a key component of the cell. He called the nucleus, we still use the term today. It rejected spontaneous generation due to it showing the cells were living because only have nucleuses.
  • Anton van Leeuwennoek

    Anton van Leeuwennoek
    He stated plants have recognizable units or cells and they came from reproduction of new cells. The rejected spontaneous generation because he said new cells reproduce.
  • Matthais Schleiden

    Matthais Schleiden
    He discovered that plants are made up of cells. His discovery rejected spontaneous generation because it later led to the cell theory.
  • Theodor Schwann

    Theodor Schwann
    He defined the cells as the fundamental unit of animal structure. The helped disprove spontaneous generation, it said that every mature animal tissue is composed of embryonic cells.
  • Albrecht van Roelliker

    Albrecht van Roelliker
    He discovered the sperm cells and egg cells were also cells. This discovery rejected spontaneous generation, because of sperm and cell being the way to reproduce.
  • Rudolf Virchow

    Rudolf Virchow
    He proposed that all living cells must rise from pre-existing cells. His idea was radical, it rejected the idea of spontaneous generation. The idea that non living cells could spontaneously generate living tissue.
  • Louis Pasteur

    Louis Pasteur
    He experimented to prove spontaneous generation wrong. His experiment rejected spontaneous generation.