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Eukaryotic Cell Structure

Eukaryotic Cell Structure - *.Alleukaryotic cellshave...

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Eukaryotic Cell Structure   * Eukaryotic cells have numerous internal membrane-bound structures. All eukaryotic  cells have:   1. plasma (cell) membrane 2. nucleus 3. cytoplasm   * Eukaryotic cells may also have the following structures:   1. nucleus - Control center of the cell; contains the chromosomes composed of DNA,  the molecule of heredity.   A. The nucleus is surrounded by a double membrane (nuclear membrane),  containing many pores through which large molecules may pass.   B. The nucleus may contain one or more nucleoli (nucleolus, sing.) which  function in the synthesis of rRNA from which ribosomes are made.   2. rough endoplasmic reticulum - A folded membranous network to which ribosomes are  attached.   A. The rough ER functions in the synthesis and transport of proteins.
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