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Cell Cycle Vocabulary

Cell Cycle Vocabulary. Somatic Cells: Cells that make organs (ex. liver, skin) Homologous: The same Chromosomes: Threadlike strands of DNA. Cell Cycle Vocabulary. Sister Chromatids: Identical copies of chromosomes attached by centromeres Centromeres:

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Cell Cycle Vocabulary

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  1. Cell Cycle Vocabulary Somatic Cells: Cells that make organs (ex. liver, skin) Homologous: The same Chromosomes: Threadlike strands of DNA

  2. Cell Cycle Vocabulary Sister Chromatids: Identical copies of chromosomes attached by centromeres Centromeres: Attachment site for sister chromatids

  3. The Cell Cycle Organisms need to make new cells for growth and to replace dead cells There are two phases in the cell cycle Interphase and Mitotic Phase

  4. Interphase The time when the cell feeds, grows and replicates it’s DNA The cell spends most of it’s time in Interphase

  5. 3 Stages of Interphase G1 stage is when the cell conducts normal functions S stage is when the cell’s chromosomes replicate G2 stage is when the cell continues normal functions and organelles replicated

  6. References Sister Chromatid: http://images.google.com/imgres?imgurl=http://www.janewhitney.com/img/sister_chromatids.jpg&imgrefurl=http://www.janewhitney.com/biology.html&usg=__2qlCMVd3w0NbpVMVDdO_ZrdJNwc=&h=425&w=454&sz=57&hl=en&start=123&um=1&tbnid=DdhnONPFJouerM:&tbnh=120&tbnw=128&prev=/images%3Fq%3Dchromatids%26ndsp%3D20%26hl%3Den%26rlz%3D1T4GWYA_enUS312US312%26sa%3DN%26start%3D120%26um%3D1 Chromosome: http://images.google.com/imgres?imgurl=http://www.sciencewithmrmilstid.com/media/chromosome.jpg&imgrefurl=http://www.sciencewithmrmilstid.com/%3Fcat%3D43&usg=__PPtUHU8GEQWJahZY_P53HzaYdjs=&h=700&w=595&sz=59&hl=en&start=90&um=1&tbnid=9_uEKMPJz59-hM:&tbnh=140&tbnw=119&prev=/images%3Fq%3Dchromosomes%26ndsp%3D20%26hl%3Den%26rlz%3D1T4GWYA_enUS312US312%26sa%3DN%26start%3D80%26um%3D1

  7. The 2 stages of Mitotic Phase Mitosis stage is when the cell’s nucleus divides Cytokinesis stage is when the cell’s cytoplasm divides

  8. Mitosis There are four phase of Mitosis: • Prophase • Metaphase • Anaphase • Telophase

  9. Prophase The replicated chromosomes wind up tightly The membrane around the nucleus breaks down

  10. Metaphase Developed Spindle fibers move sister chromatids to middle of Cell Sister chromatids pairs line up in cell’s middle

  11. Anaphase Spindle fibers attach to centromeres on sister chromatids The fibers pull sister chromatids apart and towards opposite ends of cell Chromatids are now called Chromosomes

  12. Telophase Nuclear membrane forms around each chromosome Coiled chromosomes loosen Result is two identical nuclei

  13. http://www.youtube.com/watch?v=m73i1Zk8EA0

  14. Cytokinesis Cytoplasm separates to create two new cells called daughter cells Cell plate forms to become cell membrane Organelles equally divide between the two cells

  15. Meiosis Meiosis is the process of mitosis twice to create sex cells Sex cells are called gametes Gametes are sperm in males and eggs in females

  16. References Mitosis pictures:http://www.compulink.co.uk/~argus/Dreambio/cell%20division/cell%20division%20mitosis.htm http://www.accessexcellence.org/RC/VL/GG/images/MITOSIS2.gif Cytokinesis: http://images.google.com/imgres?imgurl=http://www.biologyreference.com/images/biol_01_img0100.jpg&imgrefurl=http://www.biologyreference.com/Co-Dn/Cytokinesis.html&usg=__q4iWWzusYjL5Yeikin1cQ4UsUsc=&h=450&w=307&sz=29&hl=en&start=11&um=1&tbnid=oPtLw2PQPdq0MM:&tbnh=127&tbnw=87&prev=/images%3Fq%3Dcytokinesis%26hl%3Den%26rls%3Dcom.microsoft:en-us:IE-SearchBox%26rlz%3D1I7GGLL_en%26um%3D1 Gametes: http://images.google.com/imgres?imgurl=http://www.mcatzone.com/uploads/gloss/gametes.jpg&imgrefurl=http://www.mcatzone.com/glosslet.php%3Fletter%3Dg&usg=__WX18uDpljPXmU3phIu3feAln9u0=&h=280&w=386&sz=30&hl=en&start=8&um=1&tbnid=HECB-A5xCziZ8M:&tbnh=89&tbnw=123&prev=/images%3Fq%3Dgametes%26hl%3Den%26rlz%3D1T4GWYA_enUS312US312%26sa%3DN%26um%3D1

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