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8 Cards in this Set
- Front
- Back
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wat is a cell?
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the basic unit of structure and function in living things
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robert hooke
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mid 1600's...observed cork through a microscope..saw box like structures and called them cells
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matthias schleiden
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1838...german botanist, declared "all plants are made of cells"
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theodor schwann
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1839...german cytologist (cell scientist)..declared " all living things are made of cells "
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rudolf virchow
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1855..german physican who studied disease..declared " all cells arise from pre-existing cells"
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who were the two guys who formulated the cell theory?
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matthias schleiden and theodor schwann
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cell theory states these three things:
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all living things are made up of cells...cells are the bsic units of living things...all cells come from pre-existing cells
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2 exceptions to cell theory
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1. viruses ( not living ) 2. where did the first cell come from ( must come from pre-existing cell )
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