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1
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carries substances across the cell and releases them
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2
|
a protein that binds to a specific signal molecule
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3
|
the cell makes and forms a pouch around a substance
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4
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concentration is equal
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5
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the movement of a substance from an area of high concentration by random movement
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6
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the cell releases substances
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7
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a difference in concentration of a substance
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9
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the diffusion of water through a selectively permeable membrane
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11
|
acts as a signal molecule in the cytoplasm
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16
|
a transport protein with a polar pore through which ions can pass
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20
|
transports
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