Presentation is loading. Please wait.

Presentation is loading. Please wait.

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

Similar presentations


Presentation on theme: "Cell Cycle Vocabulary Somatic Cells: Cells that make organs (ex. liver, skin) Homologous: The same Chromosomes: Threadlike strands of DNA."— Presentation transcript:

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: hromatids.jpg&imgrefurl=http://www.janewhitney.com/biology.html&usg=__2qlCM Vd3w0NbpVMVDdO_ZrdJNwc=&h=425&w=454&sz=57&hl=en&start=123&um=1& tbnid=DdhnONPFJouerM:&tbnh=120&tbnw=128&prev=/images%3Fq%3Dchromat ids%26ndsp%3D20%26hl%3Den%26rlz%3D1T4GWYA_enUS312US312%26sa% 3DN%26start%3D120%26um%3D1 Chromosome: dia/chromosome.jpg&imgrefurl=http://www.sciencewithmrmilstid.com/%3Fcat%3D 43&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%3D2 0%26hl%3Den%26rlz%3D1T4GWYA_enUS312US312%26sa%3DN%26start%3D 80%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

14

15 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

16 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

17 References Mitosis pictures: m m Cytokinesis: mg0100.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%3 Dcytokinesis%26hl%3Den%26rls%3Dcom.microsoft:en-us:IE- SearchBox%26rlz%3D1I7GGLL_en%26um%3D1 Gametes: mgrefurl=http://www.mcatzone.com/glosslet.php%3Fletter%3Dg&usg=__WX18uDpljPXmU3 phIu3feAln9u0=&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%3 D1T4GWYA_enUS312US312%26sa%3DN%26um%3D1


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

Similar presentations


Ads by Google