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Chapter 4.3

Biology

QuestionAnswer
phospholipid bilayer a double layer of phospholipids that makes up plasmaand organelle membranes
chomosome in a eukaryotic cell, one of the structures in the nucleus that are made up DNA and protien
nuclear envelope the double membrane that surrounds the nucleus of an eukaryotic cell
nucleolus the part of an eukaryotic nucleus where ribosomal RNA is synthesized
ribosome a cell organelle composed of RNA and protein
mitochondrion in eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration, which produces APT
endoplasmic reticulum a system of membranes that is found in cell's cytoplasm and that assists the production, processing, and transporting of proteins and in the production of lipids
Golgi apparatus a system of flattened, membranous sacs
lysosome a cell organelle that contains digestive enzymes and that buds from the Golgi apparatus
cytoskeleton the cytoplasmic network of protein filaments and tubes that plays an essentail 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, and that compose the cytoskeleton, and that play a role in cell structure and movement
microfilament a fiber found inside eukaryotic cells that is composed of mainly of the protein actin and that has a role in cell structure and movement
cilium a hair like structure arranged in tightly packed rows that projects from the surface of some cells
flagellum a long, hair like structure that grows out of a cell and enables the cell to move
centriole an oganelle that is composed of two short microtubules at right angles to each other and that has an active role in mitosis
Created by: MarklayK16
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