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Mitosis/Cell Divide
This is the vocabulary involved with Cell Division and Mitosis
Term | Definition |
---|---|
cell cycle | regular sequence of growth and division that eukaryotic cells undergo |
I-PMAT-C | Interphase-Prophase, Metaphase, Anaphase, Telophase - Cytokinesis |
mitosis | the process in which a cell nucleus divides into two identical nuclei |
interphase | the period before cell division: G1 - Growth; S - DNA is copied; G2 - Final growth and preparation before cell division |
centrioles | a two-part rod-shaped structure with parts lying at right angles to each other located in pairs near the nucleus; responsible for forming spindle fibers during cell division |
prophase | 1st stage of mitosis; chromosomes condense and become visible; nuclear membrane breaks down; spindle fibers form |
metaphase | 2nd stage of mitosis; spindle fibers attach to centromere of the sister chromatids and move the chromosomes to the middle of the cell |
anaphase | 3rd stage of mitosis; sister chromatids are pulled away at the centromere and pulled to opposite ends of the cell |
telophase | 4th stage of mitosis; pinching in of cells; nuclear membrane start to form around the chromosomes; spindle fibers disappear |
cytokinesis | complete division of the cytoplasm; results in two identical cells (plant cells have a cell plate that will form into the cell well) |
nucleus | center of the cell where DNA is stored |
DNA | our genetic material |
chromosome | a rod-shaped structure found in pairs in a cell's nucleus carrying genes |
chromatid | one half of the 'X' in a chromosome (exact copy of the DNA) |
centromere | holds the sister chromatids together at the center of the 'X' |
chromatin | thin strands of genetic material found in the nucleus of a eukaryotic cell |