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| thin, flexible barrier around the cell |
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| Living things are composed of cells, basic unit of life, are reproduced by existing cells |
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| basic unit of all forms of life |
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| atrong layer around cell memebrane |
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| large structure that contains the cells genetic material abd contols the cells actvities. |
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| Material inside the cell membrane |
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| Have cell membranes and cytoplasm but do not contain nuclei. Simple cells |
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| contain nuclei have cell membrane and cytoplasm. Contains many cells. |
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| Perform important cellular functions. |
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| Published the book Micrographia contains his drawings of sections of cork as seen through one of the first microscopes. |
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| Observes tiny living organisms in drops of pond water throough his simple microscope |
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| Concludes plants are made up of cells |
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| Concludes that all animals are made up of cells |
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| Proposes that all cells come from existing cells. |
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| Demonstrates that the cell membrane is a physical structure, not an interface between two liquids |
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| Propose the theory that certain organelles, tiny structures within some cells, were once free-living cells themselves. |
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| granular material visible within the nucleus. |
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| threadlike structures containing the genetic information that is passed from one generation of cells to the next. |
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| small dense region in nuclei |
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| network of protein fliaments that helps the cell to maintain its shape. |
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| hollow tubes of protein abut 25 nanometers in diameter |
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| long, thin fibers that function in the movement and support of cells. |
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| small particles made of RNA |
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| organelle in which componets of the cell membrane are assembled and some proteins are modified. |
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| attach carbohydrates and lipids to proteins |
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| small organelles filled with enyzmes |
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| use the energy from sunlight to make engery rich food molecules in a process known as photosynthesis |
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| use enegry from food to make high-engery compounds that the celll can use to power growth, development and movement |
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| suggested that mitochrondria and chloroplasts are actually desecendants of ancient prokaryotes. |
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