functions of organelles
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| nucleus | transcription of DNA information into RNA, specifies cell proteins
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| nucleous | site of ribosomal RNA synthesis
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| chromosome | contain genes that govern the structure and activity of the cell
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| plasma membrane | encloses cell contents, regulates movement of materials in and out of the cell, helps maintaincell shape, communicates with other cells
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| RER | makes protein
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| SER | lipi, carbs and hormonal synthesis
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| ribosomes | polypeptide synthesis in both plants and animals
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| golgi complex | modifies, packages and sorts secreted proteins to vacuole and other organelles
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| lysosome | contains enzyme that break down ingested materials,
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| vacoule | stores water
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| cilia | mov't of materials on surface of some tissues
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| flagella | cell locomotion by sperm cels and some unicellular eukaryotes
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| gap junction | cellular communication, links cardiac myocytes
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| plasmodesmata | only in pants, cellular communication, allows molecules, ions to pass thru but not organelles
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| anchoring junction | found in epithelial cells (skin), desmosomes are point of attachment, uses cadherins to cement cells together
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| tight junctions | seal off intercellular spaces, prevents toxins from entering the blood, forms the blood brain barrier
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