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9 Cards in this Set
- Front
- Back
osmosis
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the diffusion of water across a selectively permeable membrane
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isotonic solution
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the concentration of dissolved substances in the solution is the same as the concentration of dissolved substances inside the cell
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hypotonic solution
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the concentration of dissolved substances is lower in the solution outside the cell than the concentration inside the cell.
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hypertonic solution
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the concentration of dissolved substances outside the cell is higher than the concentration inside the cell
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passive transport
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the movement of particles across membranes by diffusion
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facilitated diffusion
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the passive transport of materials across the plasma membrane with the aid of transport proteins
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active transport
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movement of materials through a membrane against concentration gradient that also requires energy from the cell
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endocytosis
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a process by which a cell surrounds and takes in material from its environment.
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exocytosis
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the expulsion or secretion of materials from a cell.
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