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Biology-Ch5
Ch5-Cell Division and Growth
| Question | Answer |
|---|---|
| Cell cycle | the life cycle of a cell that is composed of interphase, mitosis, and cytokinesis |
| mitosis | a process of cell division that forms two new identical cells |
| cytokinesis | the division of cytoplasm of a cell forming two cells |
| chromosome | a structure in the nucleus that is made up of DNA and protein |
| i-shaped chromosome | unduplicated chromosome that appears as a long string |
| x-shaped chromosome | duplicated chromosome where the two identical copies are attached in the middle to form an x-shape |
| prophase | the first stage of mitosis where the X shape chromosomes become visible and the nucleus breaks down |
| metaphase | the second stage of mitosis where the chromosomes line up in the middle of the cell |
| anaphase | the third stage of mitosis where the two identical sides of the X shaped chromosome are separated and move to opposite sides of the cell |
| telophase | the last stage of mitosis when the nucleus begins to reform around the newly separated chromosomes on opposite sides of the cell |
| growth factor | a large group of proteins that cause cell division to occur |
| apoptosis | programmed cell death |
| cancer | a type of disorder where cells divide uncontrolled and results in the destruction and/or invasion of surrounding healthy tissue. |
| asexual reproduction | reproduction that does not involves only one parent cell |
| cell differentation | the process by which a cell becomes specialized for a specific structure or function during multicellular development |
| stem cell | cell that can divide for long periods of time while remaining undifferentiated |
| adult stem cell | a cell in tissue that can turn into all types of cells in that tissue, for example, skin stem cell can turn into all the various types of skin cells |
| embryonic stem cell | a stem cell from an embryo that has the potential to differentiate into any type of cell in the organism |