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Biology Chapter 4-3

TermDefinition
Phospholipid Bilayer double layer of phospholipids that makes up plasma and organelle membranes
chromosome in a eukaryotic cell one of the structure in the nucleus, that are made up of DNA and protein; in a prokaryote cell- main ring of DNA
Nuclear Envelope double membrane that surrounds the nucleus of a eukaryote cell
Nucleolus part of eukaryote nucleus where ribosomal RNA is synthesized
Ribosome cell organelle composed of cell RNA and protein; the site of protein synthesis
Mitochondrion in eukaryotic cells, the cell organelle that is surrounded by two cell membranes and that is the site of cellular respiration which produces ATP
Endoplasmic Reticulum system of membranes that is found in a cells cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
Golgi Apparatus cell organelle that helps make and package materials to be transported out of the cell.
Lysosomes cell organelle that contains digestive enzymes and that buds from the Golgi apparatus
Cytoskeleton the cytoplasmic network of protein filaments and tubes that play an essential role in cell movement, shape, and division
microtubule one of the small, tubular fibers composed of the protein tubulin that are found in the cytoplasm of eukaryotic cells that compose the cytoskeleton, and that play a role in cell structure and movement
microfilament fiber found in eukaryotic cells that is composed mainly of the protein actin and that has a role in cell structure and movement
cilium hair like structure arranged in tightly packed rows that projects from the surface of some cells.
flagellum long, hair like structure that grows out of a cell and enables the cell to move
centriole organelle that is composed of two short microtubules at right angles to each other and that has an active role in mitosis
Created by: faithcayia