Term
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Definition
| Movement of a substance without the use of energy by the cell |
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Term
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Definition
| A difference in the concentration of a substance across a space |
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Term
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Definition
| State in which the concentration of a substance is equal throughout a space |
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Term
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Definition
| Random movement of particles from an area of high concentration to an area of lower concentration |
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Term
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Definition
| Movement of water through a selectively permeable membrane from an area of high concentration to an area of lower concentration |
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Term
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Definition
| A solution that causes a cell to shrink because of osmosis |
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Term
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Definition
| A solution that causes a cell to swell because of osmosis |
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Term
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Definition
| A solution that causes no change in cell size |
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Term
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Definition
| Transport protein in a cell membrane through which ions can pass |
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Term
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Definition
| Transport protein that carries a specific substance across a cell membrane |
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Term
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Definition
| Transport of substances through a cell membrane down a concentration gradient aided by the carrier proteins |
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Term
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Definition
| Movement against a concentration gradient requiring the use of energy by the cell |
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Term
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Definition
| Carrier protein that transports sodium ions out of a cell and potassium ions into the cell |
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Term
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Definition
| Movement of a substance by a vesicle to the inside of a cell |
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Term
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Definition
| Movement of a substance by a vesicle to the outside of the cell |
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Term
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Definition
| Protein that binds to specific signal molecules, causing the cell to respond |
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Term
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Definition
| Signal molecule produced in response to the binding of a chemical signal; alters the chemical activity within the cell |
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