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| The selectively permeable outer boundary of a cell consisting of a phospholipid bilayer embedded with proteins; plasma membrane or cytoplasmic membrane. |
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| A cellular organelle enclosed by a double-layered porous membrane and containing DNA; the dense core of an atom composed of protons and neutrons |
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| the contents of a cell, excluding the nucleus and cell membrane. |
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| a part of a cell that performs a specialized function |
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| A membrane that allows some molecules through but not other; semipermeable. |
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| A cell’s microscopic framework of protein filaments and tubules. |
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| Organelle composed of a system of connected membranous tubules and vesicles along which protein |
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| Organelle composed of RNA and protein that is a structural support for protein synthesis and includes RNA molecules that function as enzymes |
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| An organelle that prepare cellular products for secretion |
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| Organelle housing enzymes that catalyze the reactions of aerobic respiration |
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| Organelle that contains digestive enzymes |
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| these membranous sacs are abundant in the liver and kidney cells. |
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| a tiny rod of actin protein in cytoplasm that provides structural support or movement |
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| A minute, hollow rod of the protein tubulin |
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| Cellular organelle consisting of two centrioles |
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| microscopic, hairlike processes on the exposed surfaces of certain epithelial cells. |
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| motile tail-like structure on sperm |
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| membranous cytoplasmic sac formed by infolding of the cell membrane |
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| consists of inner and outer lipid bilayer membranes |
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| a small structure within the cell nucleus that contains RNA and proteins |
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| DNA and complexed protein that condenses to form chromsomes during mitosis |
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| random movement of molecules from a region of higher concentration toward one of the lower concentration. |
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