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14 Cards in this Set
- Front
- Back
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What are the smalles units that carry out the activities of life in organisms
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Cells
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Who put two magnifying glasses together in a tube to develop the first crude compound microscope
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Zacharia Janssen
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Made a simplet microscope with a tiny glass bead for a lens
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Anton Leeuwenhoek
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lets light pas throu an object and then through tow or more lenses
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compound light microscope
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uses a magnetic feild to bend beams of electrons
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electron micrscope
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used to study the inside parts of cells
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transmission electron microscope
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used to the surface of whole objects
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scanning electron microscope
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made a very thin slice of cork and looked at it under his microscope
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Hooke
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used a microscope to study plant parts
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Schleiden
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concluded that all animals were made up of cells
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Schwann
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Vircho
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hypothezisied that new cells don't form on thier own
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Cell theory
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all organism are made up of one or more cells
Calles are the basic structure of organisims all celll come from cells that already exist |
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is a structue that forms the outer boundary of the cell and allows only centeain materials to move into and out of the cell
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cell membrane
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each tissue cell
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carries on the functions needed to keep it alive
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