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5. Cell theory
Yessika Andrea Orea Yañez
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Transcript
attendance
FUNDAMENTALS OF LIFE Teacher. Yessika Andrea Orea Yañez
breathing exercise
cell theory
FUNDAMENTALS OF LIFE Teacher. Yessika Andrea Orea Yañez
cell theory
This theory describes the basic properties of cells, which are the fundamental units of life."
how do we know what we know
principles
THE CELL IS THE BASIC UNIT OF LIFE ALL LIVING ORGANISMS ARE COMPOSED OF CELLS ALL CELLS COME FROM PREEXISTING CELLS
Robert Hooke 1665
Matthias Schleiden 1838
Rudolf Virchow 1855
Theodor Schwann 1839
Antonie Van Leeuwenhoek 1670
robert hooke 1665
He was the first to use the term 'cell' when observing thin slices of cork through a rudimentary microscope. The small cavities he observed reminded him of the cells in a monastery, hence the name."
Antonie Van Leeuwenhoek 1670
He developed more advanced microscopes and was the first to observe living cells, such as protozoa and bacteria, which he called 'animalcules.
The first microscope was by Zacharias Jansen
Matthias Schleiden 1838
Botánico alemán que concluyó que todas las plantas están compuestas por células. Schleiden propuso que el crecimiento de las plantas se debe a la producción de nuevas células.
Theodor Schwann 1839
German physiologist who extended Schleiden's work to animals, concluding that all living organisms, both plants and animals, are composed of cells. Schwann and Schleiden are considered the founders of cell theory.
Rudolf Virchow 1855
German physician who added the principle that 'Omnis cellula e cellula' (every cell originates from another cell), laying the foundation for understanding cell reproduction and growth.