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| a two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward. |
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| a state of rest or balance due to the equal action of opposing forces. |
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| the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane. |
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| noting a solution of higher osmotic pressure than another solution with which it is compared |
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| noting a solution of lower osmotic pressure than another solution with which it is compared |
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| noting or pertaining to solutions characterized by equal osmotic pressure. |
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| the movement of ions or molecules across a cellular membrane from a lower to a higher concentration, requiring the consumption of energy. |
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| the transport of material out of a cell by means of a sac or vesicle that first engulfs the material and then is extruded through an opening in the cell membrane. |
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| the transport of solid matter or liquid into a cell by means of a coated vacuole or vesicle |
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| Selectively Permeable Membrane |
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| A cell's membrane that uses the proteins within it to allow only certain things to enter or leave the cell. |
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| Diffusion across a membrane |
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| The process in which transport proteins provide a pathway for certain molecules to pass. |
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| Small membrane sacs that specialize in moving products into, out of, and within a cell. |
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| Double membrane that surrounds a cell nucleus. |
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| Ball-like mass of fibers and granules in a cell nucleus. |
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| Cluster of protein and nucleic acids that constructs protein in a cell. |
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| Network of membranes within a cell?s cytoplasm that produce a variety of molecules. |
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| Cellular organelle that modifies, stores. an routes cell products. |
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| Membrane-bound sac that buds from the endoplasmic reticulum or the Golgi Apparatus. |
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| Membrane-bound sac containing digestive enzymes that can break down proteins, nucleic acid, and polysaccharides. |
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