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Chapter 8.2
Chapter 8.2 vocab
Term | Definition |
---|---|
binary fission | a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size |
mitosis | in eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration, which produces ATP |
asexual reproduction | reproduction that doesn't not involve the union of gametes and in which a single parent produces offspring that are genetically identical to the parent |
meiosis | a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells (gametes or spores) |
gamete | a haploid reproductive cell that unites with another haploid reproductive cell to form a zygote |
interphase | a period between two mitotic or meiotic divisions during which the cell grows, copies its DNA, and synthesizes proteins |
cytokinesis | the division of the cytoplasma of a cell; it follows the division of the cell's nucleus by mitosis or meiosis |
prophase | the first stage of mitosis and meiosis in cell division; characterized by the condensation of the chromosomes |
spindle fiber | one of the microtubules that extend across a dividing eukaryotic cell; assists in the movement of chromosomes |
metaphase | one of the stages of mitosis and meiosis, during which all of the chromosomes move to the cell's equator |
anaphase | a phase of mitosis and meiosis in which the chromosomes seperate |
telophase | the final stage of mitosis or meiosis, during which a nulclear membrane forms around each set of new chromosomes |
cell plate | the precursor of a new plant cell wall that forms during cell division and divides a cell into two |