Saturday, January 5, 2008

Cell Growth and Division Vocab

cell division: the division of a cell in reproduction or growth.
http://youtube.com/watch?v=wYRuhm4SNyA
chromatid: one of two identical strands into which a chromosome splits during mitosis.
http://www.plyojump.com/courses/biology/images/chromosome_chromatid_split.jpg
centromere: a specialized structure on the chromosome, appearing during cell division as the constricted central region where the two chromatids are held together and form an X shape.
www.lbl.gov/.../2001/Jan-02-2002/kinetochore.jpg
interphase: the period of the cell cycle during which the nucleus is not undergoing division, typically occurring between mitotic or meiotic divisions.
http://botit.botany.wisc.edu/images/130/Meiosis/Lilium_microsporogenesis/Interphase.low.jpg
cell cycle: The series of events involving the growth, replication, and division of a eukaryotic cell.
http://youtube.com/watch?v=JmiSg_bEv6I&feature=related
mitosis: The process in cell division by which the nucleus divides, typically consisting of four stages, prophase, metaphase, anaphase, and telophase, and normally resulting in two new nuclei, each of which contains a complete copy of the parental chromosomes.
http://library.thinkquest.org/C0123260/basic%20knowledge/images/basic%20knowledge/cell%20division/mitosis.gif
prophase: the first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes.
http://img.sparknotes.com/figures/D/d756b5b73abe2974f3521a828791899f/prophase.gif
centriole: one of a pair of small cylindrical cell organelles near the nucleus in animal cells.
http://sun.menloschool.org/~birchler/cells/animals/centriole/centriole2.jpg
spindle: shaped structure, composed of microtubules, that forms near the cell nucleus during mitosis or meiosis and, as it divides, draws the chromosomes to opposite poles of the cell.
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/spindle.gif
metaphase: the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle.
http://bvc.kribb.re.kr/download/image/metaphase.gif
anaphase:
the stage in mitosis or meiosis following metaphase in which the daughter chromosomes move away from each other to opposite ends of the cell.
http://img.sparknotes.com/figures/2/29a9dc6524dd09bf44944909a4263dd1/anaphase1.gif
telophase: the final stage of meiosis or mitosis, in which the separated chromosomes reach the opposite poles of the dividing cell and the nuclei of the daughter cells form around the two sets of chromosomes.
http://www.dkimages.com/discover/previews/801/908016.JPG
cytokinesis: The division of the cytoplasm of a cell following the division of the nucleus.
http://img.sparknotes.com/figures/D/d756b5b73abe2974f3521a828791899f/cytokinesis.gif
cyclin: any of a group of proteins active in controlling the cell cycle and in initiating DNA synthesis.http://www.biologyreference.com/images/biol_01_img0070.jpg

cancer: a malignant and invasive growth or tumor, esp. one originating in epithelium, tending to recur after excision and to metastasize to other sites.

http://www.alternative-cancer.net/images/Cancer_cell,%20brain.jpg


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