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25 Cards in this Set
- Front
- Back
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Robert Hooke
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named the first cell, looked at a piece of cork and thought of cells
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Anton van Leewenhoek
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perfected the compound microscope
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Cell Theory
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1.) All Living things are made of cells
2.) Basic unit of structure and function 3.) New cells come from old cells |
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Micrometer
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to measure cells
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prokaryote
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no nucleus, simple few structures most are bacteria
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eukaryote
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distinct nucleus sepration from rest of cell, complex many structures
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isotonic
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concentration is same inside cell as outside
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hypertonic
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high osmotic pressure
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hypotonic
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low osmotic presssurre
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osmosis
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is the diffusion of water through a premable membrane
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diffusion
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particles that move from more concentrated area to less concentrated area
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equalibrium
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when concentration is same inside and outside of cell.
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Nucleus
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in charge of cell divison, contains all the cells DNA
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riobosomes
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proteins are asssembled
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vacuoles
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storGE
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always associate protein with
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ribosomes
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DNA & RNA
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nucleic acids
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passive transport
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something passes in and out of the membrane without energy
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concentration
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amount of substance per unit volume
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levels of organization
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cells -->tissues-->organs-->organ systems
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organ system
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a group of organs that work together to perform a specfic function
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specialized organism
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humans- because on organ system for one job they don't share work load
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unspecialized organism
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can regenerate sponge can be cutup and the sponge can be thrown back in water and then more sponge
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multicellular
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alot of different kinds of cells
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humaans are poor
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regenerators
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