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HCS Biology
Chpater 5.2 (BJU Press)
| Term | Definition |
|---|---|
| cell cycle | The repeating cycle of events in the life of a cell; composed of interphase, mitosis, cytokinesis. |
| interphase | The period of time between cellular divisions. |
| mitosis | The duplicating and separating of a cell's chromosomes. |
| prophase | The first phase of mitosis; centromeres migrate to poles in the cytoplasm and chromosomes develop from chromatin material in the nucleus. |
| mitotic spindle | Special microtubules that "direct" the movements of chromosomes during mitosis. |
| metaphase | The second phase of mitosis; chromosomes congregate along the equatorial plane of the cell. |
| anaphase | The third phase of mitosis; paired chromatids separate and begin to migrate toward opposite poles of the cell. |
| telophase | The final phase of mitosis; chromosomes have reached opposite poles of the cell and two distinct nuclei form. |
| cytokinesis | The division of cytoplasm in a dividing cell. |
| cell plate | The precursor to the cell wall during cytokinesis in plant cells. |
| asexual reproduction | The reproduction of a new organism without the fusion of a sperm and ovum; involves only mitotic cell divisions. |