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| area of the cytoplasm near the nucleus that coordinates the building and breaking of microtubules in the all |
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| react to the presence of hormones or other regularory chemicals and thereby triggers metabolic changes in the cell |
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| the process by which cells translate the signal received by a membrane by which all translate the signal received by a membrane receptor |
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| contain enzymes that detoxify harmful substances |
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| a minute, narrow tubelike cell structure composed of a protein similar to actin, occurring singly and in bundles, involved in cytoplasmic movement and changes in cell shape. |
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| any of the small, fingerlike projections of the surface of an epithelial cell. |
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| a plaquelike site on a cell surface that functions in maintaining cohesion with an adjacent cell. |
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| to penetrate through the pores, interstices, etc., of |
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| of porous substances, rocks, etc.) not permitting the passage of a fluid through the pores, interstices, etc. |
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| the separation of large molecules, as proteins, from small molecules and ions in a solution by allowing the latter to pass through a semipermeable membrane. |
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| the substance dissolved in a given solution. |
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| a substance that dissolves another to form a solution: Water is a solvent for sugar. |
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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 ( distinguished from endocytosis) |
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| A labile bacteriocide isolated from polymorphonuclear white blood cells. |
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| the transport of fluid into a cell by means of local infoldings by the cell membrane so that a tiny vesicle or sac forms around each droplet, which is then taken into the interior of the cytoplasm. |
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| a substance that causes or accelerates a chemical reaction without itself being affected. |
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| the catabolism of carbohydrates, as glucose and glycogen, by enzymes, with the release of energy and the production of lactic or pyruvic acid. |
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| (of an organism or tissue) living in the absence of air or free oxygen. |
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