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8.2 Vocab

pg. 201 - Cell Growth and Reproduction

TermDefinition
Chromosome Structures that contain DNA and become darkly colored when stained.
Chromatin Long strands of DNA wrapped around proteins called histones.
Cell Cycle The sequence of growth and and division of a cell.
Interphase Growth period where a cell spends most of its life.
Mitosis Period of nuclear division following interphase.
Prophase The first and longest phase of mitosis where the long, stringy chromatin coils up into visible chromosomes.
Sister Chromatid The two halves of the doubled structure.
Centromere Holds the sister chromatids together and plays a role in chromosphere movement during mitosis.
Centriole Small, dark, cylindrical structures that are made of microtubules and are located just outside the nucleus.
Spindle Football-shaped, cagelike, structure consisting of thin fibers made of microtubules.
Metaphase The short second phase of mitosis, the doubled chromosomes become attached to the spindle fibers by their centromeres.
Anaphase Third phase of mitosis, where the sister chromatids split apart.
Telophase Final phase of mitosis,where the cells prepare for their own independent existence, and the chromosomes unwind as they turn into a new cells.
Cytokinesis Follows telephase, when the cells cytoplasm divides.
Tissue Groups of cells that work together in multicellular organisms.
Organ Various combinations of tissues that perform more complex roles within the organism.
Organ System Multiple organs that work together.
Created by: Austin Rector
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