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Chp. 9

key terms

QuestionAnswer
Cancer a disease of unregulated cell division: cells divide inappropriately and accumulate, in some instances forming a tumor.
Chemotherapy the treatment of disease, specifically cancer, by the use of chemicals.
Cell Division the process by which a cell reproduces itself; it is important for normal growth, development, & repair of an organism.
Cell Cycle an ordered sequence of stages that a cell progresses through in order to divide during its life; the stages includes preparatory phases (G1, S, G2) and division phases – mitosis and cytokinesis.
Interphase the stage of the cell cycle in which cells spend most of their time, preparing for cell division; there are 3 distinct phases --- G1, S, and G2.
Mitosis the segregation and separation of duplicated chromosomes during cell division.
Sister Chromatid one of the two identical DNA molecules that make up a duplicated chromosome following the DNA replication.
Centromere the specialized region of a chromosome where the sister chromatids are joined. This site is critical for proper alignment & separation of sister chromatids during mitosis.
Cytokinesis the physical division of a cell into two daughter cells.
Cell Cycle Checkpoint a cellular mechanism that ensures that each stage of the cell cycle is completed accurately.
Apoptosis programmed cell death; often referred to as cellular suicide.
Metastasis the spread of cancer cells from one location in the body to another.
Radiation Therapy the using of ionizing (high-energy) radiation to treat cancer.
Created by: kbtwomey
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