Term
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Definition
| energy from a molecule in motion |
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Term
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Definition
| the process whereby solute molecules move down a concentration gradient from higher to lower concentration. Passive transport |
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Term
| Where does diffusion take place |
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Definition
| in between cells and the space surrounding cells |
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Term
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Definition
| surrounds cells and allows the passage of some molecules |
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Term
| What determines which molecules can pass through a membrane |
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Definition
| Protein channels and/or protein carriers present in the cell membrane |
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Term
| What molecules and atoms do not require proteins for passage into the cell |
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Definition
| small-uncharged atoms and molecules |
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Term
| Selectively permeable/deferentially permeable/semi-permeable membrane |
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Definition
| allows for passage of a restricted set of molecules |
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Term
| What is the primary direction of diffusion? |
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Definition
| the side of the pure solvent to the solution on the other side of the membrane |
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Term
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Definition
| the diffusion of water through a selectively permeable membrane. Passive transport, low solute concentration to high solute concentration |
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Term
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Definition
| The force causing the diffusion of water across a selectively permeable membrane |
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Term
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Definition
| equal salt concentration to the interior of the cell |
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Term
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Definition
| lower concentration of salt than the cell interior |
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Term
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Definition
| higher concentration of salt than the cell interior |
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Term
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Definition
| the gradual difference in concentration over the distance between high and low rregions |
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Term
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Definition
| starch indicator that stains the precipitate clack to blue-black |
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Term
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Definition
| pH indicator turns pinkish-red in basic solutions |
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Term
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Definition
| a particle suspended in a liquid(gas) moves chaotically under the action of collisions with surrounding molecules |
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Term
| Rate of diffusion is directly proportional to |
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Definition
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Term
| Rate of diffusion is inversely proportional to |
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Definition
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Term
| What are the factors that influence the rate of diffusion |
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Definition
| temperature and particle size |
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