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Definition
| regulation and maintenance of constant internal conditions in an organism |
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Definition
| movement of molecules across the cell membrane without energy input from the cell |
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Definition
| movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration |
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Definition
| difference in the concentration of a substance from one location to another |
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Definition
| diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration |
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Definition
| solution that has a higher concentration of dissolved particles compared with another solution |
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Definition
| solution that has a lower concentration of dissolved particles compared with another solution |
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Definition
| solution that has an equal concentration of dissolved particles compared with another solution |
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Definition
| diffusion of molecules assisted by protein channels that pierce a cell membrane |
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Definition
| movement of molecules across a membrane from a region of lower concentration to a region of higher concentration; requires energy input by a cell |
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Definition
| prevent toxic compounds from accumulating in the cell |
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Definition
| uptake of liquids or large molecules into a cell by inward folding of the cell membrane |
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Definition
| release of substances out a cell by the fusion of a vesicle with the membrane |
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Definition
| Introduction of fluids into a cell by invagination of the cell membrane, followed by formation of vesicles within the cells |
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Definition
| The engulfing and ingestion of bacteria or other foreign bodies by phagocytes |
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