history of cells

  • hooke publishing

    hooke publishing

    hooke publishes micrographia, micrographia is sketches of various natural things under a microscope. its important because its the first work on microscopy.
  • leeuwenhoek letter

    leeuwenhoek letter

    van leeuwenhoek sends letter to royal society that the particles seen under a microscope are living organisms. this is important because this was apart of the first test.
  • microscopes

    microscopes

    achromatic microscopes were introduced
    it was designed to control the effects of chromatic distortion or aberration and to bring focus of all colors to the same convergence point
  • Robert brown

    Robert brown

    Robert brown recognized the nucleus as an essential constituent of living cells
    the nucleus is the important structure in a cell, it serves the function of information storage.
  • new discovery

    new discovery

    schleiden and schwann discover plants and animals are made of cells, respectively. cell theory formulated
    cells are the basic building blocks of all living organisms
  • theory

    theory

    a number of scientists refute "free cell formation" theory.
    is a process of new cell formation found only in ascomycetes.
  • improving

    improving

    microscopy greatly improved.
    this is important because there's more small details that scientist will be able to see that they couldn't before.
  • nerve cells

    nerve cells

    Golgi develops "black reaction" to observe nerve cells.
    this allowed scientists to stain and view the structure of neurons.
  • Wilhelm's idea

    Wilhelm's idea

    Wilhelm forwards his idea that the nerve-cell body and its prolongations form an independent unit. the neurons cell body is called the some this is important because most of protein synthesis occurs here
  • new terms

    new terms

    Waldeyer introduces the term "neuron", paving the way for "neuron theory". the neuron theory is the nervouse system