Significant Events in Biology

By keanevu
  • Discovery of Microorganisms

    Discovery of Microorganisms

    Anton Van Leeuwenhoek accidently discovered microorganisms by examining a drop of water with a microscope.
  • Discovery of Photosynthesis

    Discovery of Photosynthesis

    Jan Ingenhousz observed and found that plants react differently when exposed to sunlight compared to darkness.
  • Discovery of the Cell Nucleus

    Discovery of the Cell Nucleus

    Robert Brown discovers the nucleus within cells.
  • Discovery of Cell Division

    Discovery of Cell Division

    Walther Flemming observes animal cells dividing in stages he called mitosis.
  • Discovery of Sex Cells

    Discovery of Sex Cells

    August Weismann discovers sex cells when observing that they divide differently than regular cells.
  • Discovery of Mitochondria

    Discovery of Mitochondria

    The first recording of intracellular structures were found in the 1840s. Only until 1894, Richard Altmann established them as cell organelles.
  • Discovery of Hormones

    Discovery of Hormones

    William H. Bayliss and Ernest H, Starling discover chemical messengers known as hormones
  • Discovery of the Krebs Cycle

    Discovery of the Krebs Cycle

    Hans Kreb identifies the Kreb Cycle as the steps the cell takes to create energy from sugars, fats, and proteins.
  • Discovery of Archaea

    Discovery of Archaea

    Carl Woese discovers that there more types of bacteria. Prokaryotes were not the only simple celled organisms on Earth.
  • First to derive stem cells

    First to derive stem cells

    James Thomson and a group of scientists were the first to derive human embryonic stem cells.