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The Generalized Cell
Anatomy test @ sometime this week
12
Anatomy
11th Grade
08/31/2010

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Term
Cell membrane
Definition
The limiting membrane of the cell, retains internal structure, permits exportation and importation of materials.
Term
Nuclear membrane
Definition
Porous membrane of similar constrction to the cell membrane; the limiting membrane of the nucleus, separating it from the cytoplasm, regulates passage of molecules.
Term
Nucleoplasm
Definition
The ground substance of the nucleus, containing the chromatin or thin threads of genetic material.
Term
Nucleolus
Definition
A mass of largely RNA in the nucleus producing units of RNA which combine in the cytoplasm to form ribosomes.
Term
Cytoplasm
Definition
The ground substance of the cell less the nucleus.
Term
Smooth/Rough endoplasmic reticulum
Definition
Membrane-lined tubules to which ribosomes may be attached. Concerned with transport of materials.
Term
Ribosome
Definition
The site of protein synthesis where amino acids are strung in sequence as directed by mRNA.
Term
Golgi complex
Definition
Flattened membrane-lined sacs which bud off small vesicles from the edges, collect secretory products and package them for export or cell use.
Term
Mitochondrion
Definition
Energy for cell operations is generated here through a complex series of reactions between exygen and products of digestion.
Term
Vacuole
Definition
Membrane-lined containers which can merge with one another or other membrane-lined structure, such as the cell membrane.
Term
Lysosome
Definition
Membrane-lined container of enzymes with great capacity to break down structure, especially ingested foreign substances.
Term
Centriole
Definition
Role prominent during cell division.
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