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16 Cards in this Set
- Front
- Back
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eukaryote
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an organism that has a nuclear membrane surrounding genetic material and has other membrane-bound organelles in the cytoplasm
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prokaryote
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an organism without a nucleus
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molecule
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a structure composed of two or more atoms held together by chemical bonds
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cytoskeleton
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a system of protein microfilaments and microtubules that allow the cell to have a characteristic shape
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organelle
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a cytoplasmic structure that has a specialized function
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endoplasmic reticulum (ER)
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a system of cytoplasmic membranes arranged into sheets and channels that functions in synthesizing and transporting gene products
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golgi apparatus
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membranous organelles; they sort, modify, and package proteins synthesized by ER
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lysosomes
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organelles that are membrane enclosed; they contain digestive enzymes
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mitochondria
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membrane-bound organelles; sites of energy production in all eukaryotic cells
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nucleus
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membrane-bound organelle that contains the chromosomes
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nucleolus
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a nucleus region that functions in the synthesis of ribosomes
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chromatin
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the component material of chromosomes, visible as clumps or threads in nuclei under the microscope
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chromosomes
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the thread like structure in the nucleus that carries genetic info
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gene
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the fundamental unit of heredity
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homologues
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members of a chromosomal pair
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diploid
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the condition in which each chromosome is represented twice as a member of a homologous pair
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