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9 Cards in this Set
- Front
- Back
Eukaryote |
any single-celled or multicellular organisms hose cell contains a distinct, membrane- bound nucleus |
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Prokaryote |
any of the group organisms primarily characterized by the lack of true nucleus and other membrane-bound cell compartments |
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Selectively Permeable |
a feature and a function of the plasma membrane that is essential to maintain homeostasis by regulating the passage of some substances while preventing others from entering the cell |
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Diffusion |
a type of passive transport (spontaneous), therefor, it is a net movement of molecules in and out of the cell across the cell membrane along a concentration gradient (higher concentration to lower concentration) |
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Facilitated Diffusion |
when molecules move (diffuse) via special transport proteins found within the cell membrane |
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Osmosis |
tendency of water to flow from a hypotonic solution (low concentration of dissolved substances) to hypertonic solution (high consentration of dissolved substances) across a semipermeable membrane |
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Isotonic |
having equal tension or pressure |
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Hypertonic |
high concentration |
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Hypotonic |
lower concentration |