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Organelles
description of organelles
10
Biology
Undergraduate 2
01/27/2011

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Term
Ribosomes
Definition
site of protein synthesis
Term
Rough Endoplasmic Reticulum
Definition
Area for storage and transport of proteins
Term
Smooth Endoplasmic Reticulum
Definition
site of steroid and lipid synthesis, lipid metabolism, and drug detoxification
Term
Golgi Apparatus
Definition
Packing and proteins for export from cell
Term
lysosomes
Definition
various sized membranous sacs containing digestive enzymes, digests worn out cell organelles and foreign substances that enter cells; total cell destruction if ruptured
Term
Peroxisomes
Definition
small lysosome like membranous sacs containing oxidase enzymes that detoxify alcohol, hydrogen peroxide and other harmful chemicals
Term
Mitochondria
Definition
rod shaped bodies with a double membrane wall; inner membrane is thrown into folds, "powerhouses of the cell"
Term
centrioles
Definition
paired cylindrical bodies lie at right angles to each other, close to nucleus; direct the formation of the mitotic spindle during cell division, form bases of cilia and flagella
Term
active transport
Definition
requires energy
Term
vesicular transport
Definition
endocytosis; into the cell
exocytosis; out of the cell
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