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Mitosis and cancer
| Term | Definition |
|---|---|
| cell cycle | the process by which cell division occurs |
| chromatin | loose DNA and proteins in nucleus |
| chromosomes | tightly wound up DNA and proteins |
| sister chromatids | 2 identical halves |
| centromere | connects 2 sister crhomatids |
| interphase | cell is growing/copying DNA getting ready to divide |
| G1 | Growth and development of cell |
| synthesis phase | DNA must be copied before you make new cells |
| G2 | Prepares for cell division |
| mitosis | nucleus divides |
| prophase | the nuclear envelope breaks apart and chromatin condenses into chromosomes |
| metaphase | Chromosomes line up across the middle of the cell |
| anaphase | each identical sister chromatid is split apart, individual chromosomes start to move to opposite sides of the cell |
| telophase | Each side of the cell has a copy of the chromosomes, the nuclear envelope ref ors and the spin dal fibers disappear. Chromosome uncoil back into chromatin |
| nuclear envelope | |
| spindle fibers | connect to the center of each chromosome at the centromere |
| centrioles | They help to organize spindle fibers |
| animal cell cytokinesis | cell membrane moves inward until the cell is pinched into two |
| plant cell cytokinesis | cell plate forms midway between the divided nuclei developed into cell wall |
| daughter cells | two identical cells with the same DNA split into two |
| cancer | is a disease with uncontrolled cell growth |
| factors that influence cancer | Heredity Environment Lifestyle |
| cancer prevention | Exercise Eat Healthy Do not smoke Wear sunscreen |
| cancer treatment options | Operation Radiation therapy chemotherapy |