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| Basic unit of structure and function in the body |
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| state of dynamic constancy in the internal environment |
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| largely the study of the control mechanisms that participate in maintaining homeostasis |
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| composed of double layer of phospholipids in which proteins are embedded, gives form to cell and controls passage of materials |
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| Fluid, jellylike substance between the cell membrane and the nucleus in which organelles are suspended, serves as matrix substance in which chemical reactions occur |
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| system of interconnected membrane-forming canals and tubules, Agranular (smooth) metabolizes nonpolar compounds and stores Ca2+ in striated muscle cells, granular (rough) assists in protein synthesis |
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| cluster of flattened membranous sacs, synthesizes carbohydrates and packages molecules for secretion, secretes lipids and glycoproteins |
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| membranous sacs with folded innter partitions, release energy from food molecules and transform energy into usable ATP |
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| membranous sacs with folded innter partitions, release energy from food molecules and transform energy into usable ATP |
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| membranous sacs, Digest foreign molecules and worn and damaged organelles |
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| spherical membranous vesicles, contain enzymes that detoxify harmful molecules and break down hydrogen peroxide |
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| nonmembranous mass of two rodlike centrioles, helps organize spindle fibers and distribute chromosomes during mitosis |
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| membranous sacs, store and release various substances within the cytoplasm |
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| microfilaments and microtubules |
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| Thin, hollow tubes, support cytoplasm and transport materials within the cytoplasm |
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| minute cytoplasmic projections that extend from the cell surface, move particles along cell surface or move the cell |
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| double-layered membrane that surrounds the nucleus, composed of protein and lipid molecules, supports nucleus and controls passage of materials between nucleus and cytoplasm |
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| Dense, nonmembranous mass composed of protein and RNA molecules, produces ribosomal RNA for ribosomes |
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| fibrous strands composed of protein and DNA, contains genetic code that determines which proteins (including enzymes) will be manufactured by the cell |
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| epithelial, connective, muscle, and nervous |
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| functions to protect, secrete, or absorb, covers ourter surface of the body and the outer surfaces of internal organs, line the body cavities and the lumina of ducts vessels and tubes |
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| cells are closely joined together and have little intercellular substance (matrix), there is an exposed suface either externally or internally, a basement membrane (composed of glycoproteins) is present to anchor the epithelium to underlying connective tissue |
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