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| Allows some things to enter orleave the cell while keeping other things outside or inside the cell. |
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| a type of passive transport in cells in which molecules move from areas where there are more of them to areas where there are fewer of them. |
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| Molecules of a substance will continue to move from one area into another until the relative number of these molecules is equal in the 2 areas. |
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| the diffusion of water through a cell membrane |
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| the movement of substances through the cell membrane without the input of energy. |
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A type of passive transport.
Example: like a drive through window at McDonald's. It lets you get food out of McDonald's and put money into McDonald's. |
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When an input of energy is required to move materials through a cell membrane.
Example: Root cells from a plant require minerals from the soil. |
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The process of taking substances into a cell by surrounding it with the cell membrane.
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The contents of a vesicle can be released by a cell using this process.
Vesicle s membranes fuses with a cell's membrane, and the vesicle's contents are released. |
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