The cell theory
Published on Nov 18, 2015
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PRESENTATION OUTLINE
MAJOR PRINCIPLES OF THE CELL THEORY
- All organisms are made of cells
- The most basic unit of life
- All cells arise from pre-existing living cells
Photo by Yersinia
CONTRIBUTORS OF THE CELL THEORY
- Hooke: First to identify cells and name them
- Leeuwenhoek: Observed cells in greater detail
- Schleiden: the first to note thatplants are made of cells
- Schwann: Concluded that all living things are made of cells
- Virchow: He concluded that all living cells come from other cells
Photo by Rob 'n' Rae
PROKARYOTIC CELLS
- No nucleus
- No membrane bound organelles
- DNA suspended in cytoplasm
- Single-celled organisms
Photo by Internet Archive Book Images
