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Biol 095 Animal Cells
Typical Organelles and Structures of Animal Cells
10
Biology
Undergraduate 1
10/26/2009

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Term
Cytoskeleton
Definition
Structurally supports, imparts shape to cell; moves cell and its components. Contains microtubules, microfilaments, and intermediate filaments.
Term
Mitochondrion
Definition
Energy powerhouse; produces many ATP by aerobic respiration.
Term
Centrioles
Definition
Special centers that produce and organize microtubules.
Term
Plasma Membrane
Definition
Selectively controls the kinds and amounts of substances moving into and out of cell; helps maintain cytoplasmic volume; composition.
Term
Nucleus
Definition
Keeps DNA away from potentially damaging reactions in cytoplasm. Is surrounded by nuclear envelope, contains nucleolus, and DNA in nucleoplasm.
Term
Ribosomes
Definition
(attached to rough ER and free in cytoplasm) Sites of protein synthesis.
Term
Rough ER
Definition
Modifies new polypeptide chains; synthesizes lipids.
Term
Smooth ER
Definition
Diverse roles; e.g., makes lipids, degrades fats, inactivates toxins.
Term
Golgi Body
Definition
Modifies, sorts, ships proteins and lipids for export or for insertion into cell membranes. Shipping Center.
Term
Lysosome
Definition
Digests, recycles materials. Garbage man.
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