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17 Cards in this Set
- Front
- Back
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Cell Theory
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A scientific theory that describes the properties of cells.
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Prokaryotes
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A single-celled organism that doesn't have a distinct nucleus or other specialized organs.
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Eukaryotes
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An organism consisting of a cell or cells that carry DNA in the nucleus.
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Nucleus
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A dense organelle present in most eukaryotic cells.
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Chromosome
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A threadlike structure of nucleic acids and proteins in the nucleus of most living cells that carry genes.
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Nucleoid
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An irregularly shaped region in a prokaryotic cell that contains the genetic information.
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Plasmids
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A genetic structure in a cell that can replicate independently of the chromosomes.
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Flagella
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A microscopic slender threadlike appendage that enables many protozoa and bacteria to swim.
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Cell Membrane
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The semipermeable membrane surrounding the cytoplasm of the cell.
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Cell Wall
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A rigid layer of polysaccharides lying outside the plasma membrane of cells.
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Ribosomes
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A minute particle consisting of RNA and proteins, found in large numbers in the cytoplasm of the cell.
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Cytoplasm
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The material or protoplasm within a living cell, not including the nucleus.
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Cytosol
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The aqueous component of the cytoplasm of a cell.
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Organelles
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Any of a number of organized or specialized structures within a living cell.
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Nucleolus
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A small dense spherical structure in the nucleus of a cell during interphase.
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Cytoskeleton
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A microscopic network of proteins filaments and tubules in the cytoplasm of many living cells.
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ER (endoplasmic reticulum)
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A network of tubular membranes in the cytoplasm of a cell, with a smooth surface or it can be studded with ribosomes and considered rough.
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