Cell Theory

Timeline created by Finkhaus98
  • Zacharias Janseen makes the compound microscope

    Zacharias Janseen makes the compound microscope
    With the help of his father in 1595, he invented the compound microscope.
  • Robert Hooke First describes a cell

    Robert Hooke First describes a cell
    While studying a silver cork under a microscope, he noticed it had “pores” surrounded by walls
    Was actually looking at a dead plant cell
    He named these pores “Cells”
    Hooke calculated the number of cells in a cubic inch to be 1,259,712,000,
  • Antony Van Leeuwenhoek builds the microscope

    Antony Van Leeuwenhoek builds the microscope
    Made microscopes with a single high-quality lens
    Described spermatozoa for the first time
    Studied many different type of organisms
    Gave the first ever accurate description of red blood cells
    Discovered bacteria and protozoa for the first time while studying teeth scraping
  • Franz Bauer discovered the nucleus

    Franz Bauer discovered the nucleus
    Studied microscopy to dissect and accurately draw specimens reproductive organs
    Franz discovered the nucleus for the first time and sketched it; though at the time he didn´t realize it´s significance or have name for it
  • Henri Dutrochet discovers osmosis, plant cells,cell structure between plants and animals, and cell biology

    Henri Dutrochet discovers osmosis, plant cells,cell structure between plants and animals, and cell biology
    Henri Dutrochet was known for being the founder of cell biology. He discovered plant cells and in 1824, proposed animal cells and plant cells have similar structures
  • Henri Milne-Edwards proposed Globules

    Henri Milne-Edwards proposed Globules
    proposed animal tissues are formed from globules- (a small round particle of a substance)
  • Robert Brown named the nucleus

    Robert Brown named the nucleus
    When observing pollen fertilizing, he noticed it moving in and out of ovals in the cell
    named the oval the Nucleus and realized it was vital for fertilization & embryonic development
  • Jan Purkinje determines protoplasm

    Jan Purkinje determines protoplasm
    Purkinje determined the word protoplasm as the fluid substance of a cell
    Also observed plasma in blood cells
    Noticed cells were the structure of animal and plants
  • Matthias Schleiden declared cells as the basic building blocks of life

    Matthias Schleiden declared cells as the basic building blocks of life
    Thought plant growth happen because of new cells forming
    In 1838, Declared cells as the basic building block of life
    Determined that plant tissues are made of cells and that an embryonic plant arose from a single cell
  • Theodor Schwann describes the cell theory

    Theodor Schwann describes the cell theory
    Assisted Schleiden about tissues being composed of cells
    in 1839, Determined the Cell Theory
    Described cell structure in animal cartilage
  • Robert Remak observes cell division

    Robert Remak observes cell division
    In 1844, Had a plan to experiment with cell division
    Strained or hardened the cell membrane with Copper Sulfate, Vinegar, and alcohol
    Found cell division in animal cells
    Theorized that cell division is the reason pathological tissue spreads
  • Francois Raspail proposes the third part of the cell theory

    Francois Raspail proposes the third part of the cell theory
    Between 1844 and 1855, Raspail was the first to propose that that all cells are derived from other cells
  • Rudolph Virchow finalizes the cell theory

    Rudolph Virchow finalizes the cell theory
    Virchow added the third part to the cell theory: cells develop from preexisting cells (proved Raspail´s idea)
    First to show the theory applies to all cells not just healthy ones