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Chapter 4.3

Cell organelles and features

QuestionAnswer
phospholipid bilayer a double layer of phospholipids that makes up plasma and organelle membranes
chromosome one of the stuctures in the nucleus that are made up of DNA and protein and also the main ring of DNA
nuclear envelope the double membrane that is surrounded the nucleus of a eukaryotic cell
nucleolus the part of the eukaryotic nucleus where ribosomal RNA is synthesized
ribosome a cell organelle composed of RNA and protein; the site of protein synthesis
mitochondrion the cell organelle that is surroned by two membranes and that is the site of cellular respiration, which produces ATP
endoplasmic reticulum a system of membranes that is found in a cell's cytoplasm and that assits in the production, processing, and transport of proteins and the production of lipids
Gogli apparatus another system of flatten, membranous sacs
lyosome a cell organelle that contains digestive enzymes and that buds from the Golgi apparatus
cytoskeleton a cytoplasm network of protien filaments and tubes that plays an essntial role in cell movement, shape and division
microtubule on eo fthe small, tubular fibers compised of the protein tubulin that are found in the cytoplasm of eukaryotic cells, and that play a role in cell structure and movement
microfilament fiber found on the inside of the eukaryotic cells that uis composed mainly of the protein actin and that has a role in cell structure and movememt
cilium a hair like structure arranged in tightly packed rows that projects from the surface of some cells
flagellum a long, hairlike structure that grows out of a cell and enables the cell to move
cenriole an organelle that is composed of 2 short microtubules as right angles to each other and that has an active role in mitosis
Created by: southm15
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