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31 Cards in this Set
- Front
- Back
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Cell membrane |
A complex barrier separating the cell from its external environment. |
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Components of the Cell Membrane |
Phospholipids, Cholesterols, Proteins, and Carbohydrates |
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Mosaic |
An art term used to describe a painting made of bits of glass or other objects |
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Hydrophilic |
Water loving |
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Dynamic Equilibrium |
When the number of molecules on one side of the membrane is the same as the number on the other side |
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Solution |
A mixture of two or more substances |
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Solute |
The (small amount) in a solution |
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Solvent |
The (large amount) in a solution |
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Isotonic |
Has the same concentration of solutes and solvents |
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Iso |
Same |
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Tonic |
Strength |
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Hypertonic |
Has more solutes and less solvents |
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Hyper |
More |
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Hypotonic |
Fewer solutes and more solvents |
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Hypo |
Less |
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Isotonic Solution |
Water moves in and out of the cell at the same rate |
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Hypertonic Solution |
Water moves out of the cell |
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Hypotonic Solution |
Water moves into the cell |
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Cholesterol |
Strengthens the cell membrane and helps it stay flexible |
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Carbohydrates |
(ID Badges) helps the cells tell one type of cell from another |
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Selective Permeability |
A cell cannot function without things entering and exiting through the cell membrane |
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Active Transport |
Requires energy input (ATP) |
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Passive Transport |
Doesn’t require energy (ATP) |
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Diffusion |
Movement of molecules from high concentrations to low concentrations |
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Concentration Gradient |
Difference of concentration of a molecule in a cell or area |
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Osmosis |
A special type of diffusion where water moves through the cell membrane |
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Facilitated Diffusion |
Diffusion requiring carrier proteins |
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Endocytosis |
Movement of packaged substances across the membrane into the cell |
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Pinacytosis |
Cell drinking |
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Phagocytosis |
Cell eating |
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Exocytosis |
Releasing things out of a cell like wastes and products |
