click below
click below
Normal Size Small Size show me how
Chap 10 Biology
Term | Definition |
---|---|
cell divison | the process by which a cell divides into two new daughter cells |
mitosis | division of the cell nucleus |
cytokinesis | division of the cytoplasm |
chromatid | each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA. |
centromere | area where each pair of chromatids are attached |
interphase | "in-between" period of growth |
cell cycle | series of event that cells go through as they grow and divide |
prophase | first and longest phase of mitosis |
centriole | two tiny structures located in cytoplasm |
spindle | fan-like micro-tubule structure that helps separate the chromosomes |
metaphase | the chromosomes line up across the center of the cell; 2nd phase |
anaphase | the centromeres that join the sister chromatids split, allowing the sister chromatids to separate and become individual chromosomes; 3rd phase |
telophase | chromosomes begin to disperse into a tangle of dense material |
cyclin | a protein that regulates the cell cycle |
cancer | a disorder in which some of the body's own cells lose the ability to control growth |
cell specialization | cells developing in different ways to perform different tasks |
tissue | group of similar cells that perform a particular function |
organ | group of tissues working together |
organ system | group of organs that work together to perform a specific function |