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| Structural unit of all living things. |
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| A membrane that allows certain substances to pass while restricting the movement of others. |
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| The tendency of molecules or ions to scatter evenly throughout the environment. |
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| Transmembrane proteins that serve to transport substances, usually ions or water, through aqueous channels from one side of the membrane to the other. |
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| The diffusion of a solvent, such as water, through a selectively permeable membrane. |
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| Solutions with the same concentrations of nonpenetrating solutes as those found in cells. |
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| Solutions with a higher concentration of nonpenetrating solutes than seen in the cell. |
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| Solutions that are more dilute than cells. |
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| The process that forces water and solutes through a membrane or capillary wall by fluid pressure. |
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| Moving substances from the cell interior to the extracellular space. |
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| Moving substances across the plasma membrane into the cell from the extacellular environment. |
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| Some funtion in contact signaling, and others in chemical signaling. |
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| Signaling chemicals that bind specifically to plasma membrane recptors. |
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| Composed of about 30% DNA and about 60% globular histone proteins and about 10% RNA. |
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| Chromatine strands, united by a buttonlike centromere. |
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| The series of events that parcel out the replicated DNA of the mother cell to two daughter cells. |
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| Involves the transfer of information from a DNA gene's base sequence to the complementary base sequence of an mRNA molecule. |
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| Step of protein synthesis where the language of nucleic acids is translated into the language of proteins. |
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