KIN 223 Ch. 4 Test
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| A. Organelles enclosed by a membrane. Ex: ER, Golgi apparatus, lysosomes, peroxisomes, mitochondria B. A portion of DNA that lies between two exons; non coding regions in pre-messenger RNA. These are removed during pre-messenger RNA processing C. Organelle composed of an extensive network of connected membranes; involved in synthesis, transport, and storage of macromolecules and detoxification of drugs; smooth or rough D. A special type of ion pump. Exchange pump. E. Segregation a d disposal of damaged organelles within a cell F. Process of adding a phosphate group to a molecule G. Fluid that surrounds the cell H. Organelles not enclosed within a membrane. Generally composed of protein. Ex: ribosomes, centrosome, proteasome, cytoskeleton I. Process whereby contents within a vesicle are released from a cell J. Uses a beam of electrons to illuminate a specimen stained with heavy metal K. Closed cellular structure within the cytoplasm surrounded by a single membrane L. Special nuclear proteins that are a part of the nucleosome M. Composed of 5 integral proteins that form a tiny, fluid-filled tunnel that extends across a small gap between adjacent cells. Forms a direct passageway for substances to move between neighboring cells. N. A form of endocytosis by which cells ingest liquid. Cell drinking. O. Pressure exerted by water movement across a membrane as it moves toward an area of lower water concentration P. Plasma membrane extensions containing cytoplasm and microtubules that move materials past the cell Q. A form of endocytosis by which cells ingest and digest solid substances. Cell eating R. Passive transport process using carrier proteins or channel proteins to move a chemical across the plasma membrane S. Carries out diverse metabolic processes that vary by cell type. Functions include synthesis, transport, and storage of lipids; carbohydrate metabolism; and detoxification of drugs and poisons. T. Whiplike locomotory extension of the plasma membrane; enables a sperm cell to move |
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