End Show Slide 1 of 38 Copyright Pearson Prentice Hall 10-2 Cell Division

End Show Slide 2 of 38 Glue Foldable First Copyright Pearson Prentice Hall

End Show 10-2 Cell Division Slide 3 of 38 Vocabulary Centriole Centromere Spindle Fibers Nuclear Envelope Interphase Prophase Metaphase Anaphase Telophase Cytokinesis Daughter cell Parent cell Copyright Pearson Prentice Hall

End Show 10-2 Cell Division Slide 4 of 38 Cell Cycle Interphase G1 S G2 G0 Foldable (Cell Cycle) Copyright Pearson Prentice Hall Mitosis Parent Cell Daughter cell Centriol Centromere Spindle Fibers Nuclear Envelope Foldable (Mitosis) Prophase Metaphase Anaphase Telophase Cytokinesis

End Show 10-2 Cell Division Slide 5 of 38 Copyright Pearson Prentice Hall The Cell Cycle Cell Cycle The cell cycle is the series of events that cells go through as they grow and divide. Made of 3 steps: Interphase, Mitosis, & Cytokinesis.

End Show 10-2 Cell Division Slide 6 of 38 Copyright Pearson Prentice Hall The Cell Cycle During the cell cycle: a cell grows prepares for division divides to form two daughter cells, each of which begins the cycle again

End Show 10-2 Cell Division Slide 7 of 38 Interphase is the period of growth that occurs between cell divisions. Contains 3 steps: G1, S, & G2. Copyright Pearson Prentice Hall

End Show 10-2 Cell Division Slide 8 of 38 Copyright Pearson Prentice Hall The Cell Cycle The cell cycle consists of four phases: G 1 (Growth) S Phase (DNA synthesis) G 2 (Growth) M Phase (Mitosis) G 0 (Dormant phase)

End Show 10-2 Cell Division Slide 9 of 38 Copyright Pearson Prentice Hall Events of the Cell Cycle During G 1, the cell increases in size synthesizes new proteins and organelles

End Show 10-2 Cell Division Slide 10 of 38 Copyright Pearson Prentice Hall Events of the Cell Cycle During the S phase, chromosomes are replicated DNA synthesis takes place Once a cell enters the S phase, it usually completes the rest of the cell cycle.

End Show 10-2 Cell Division Slide 11 of 38 Copyright Pearson Prentice Hall Events of the Cell Cycle The G 2 Phase (Second Gap Phase) organelles and molecules required for cell division are produced Once G 2 is complete, the cell is ready to start the M phase—Mitosis

End Show 10-2 Cell Division Slide 12 of 38 Copyright Pearson Prentice Hall Cell Cycle Events of the Cell Cycle

End Show 10-2 Cell Division Slide 13 of 38 Copyright Pearson Prentice Hall Mitosis - a type of cell division that results in two identical daughter. 4 stages: Prophase, Metaphase, Anaphase, & Telophase Parent cell - A cell that is the source of other cells, as a cell that divides to produce two or more daughter cells Daughter cell - Either of the two cells formed when a cell undergoes cell division by mitosis. Cell Division

End Show 10-2 Cell Division Slide 14 of 38 Centrioles - a cylindrical cell structure found in most eukaryotic cells. Spindle Fibers - Spindle fibers form a protein structure that divides the genetic material in a cell Nuclear Envelope - The nuclear envelope surrounds the nucleus with a double membrane with multiple pores. Copyright Pearson Prentice Hall

End Show 10-2 Cell Division Slide 15 of 38 Copyright Pearson Prentice Hall Mitosis Biologists divide the events of mitosis into four phases: Prophase Metaphase Anaphase Telophase

End Show 10-2 Cell Division Slide 16 of 38 Copyright Pearson Prentice Hall Mitosis

End Show 10-2 Cell Division Slide 17 of 38 Copyright Pearson Prentice Hall Section 10-2 Prophase Spindle forming Chromosomes (paired chromatids) Centromere Click to Continue Mitosis Prophase

End Show 10-2 Cell Division Slide 18 of 38 Copyright Pearson Prentice Hall Mitosis Prophase Chromatin condenses into chromosomes. The centrioles separate and take up positions on opposite sides of the nucleus. Spindle fibers form. Nuclear Envelope dissolves Spindle forming Centromere Chromosomes (paired chromatids)

End Show 10-2 Cell Division Slide 19 of 38 Copyright Pearson Prentice Hall Centriole Spindle Mitosis Click to Continue Metaphase

End Show 10-2 Cell Division Slide 20 of 38 Copyright Pearson Prentice Hall Mitosis Metaphase The chromosomes line up across the center of the cell. Spindle fibers attach to chromosomes. Centriole Spindle

End Show 10-2 Cell Division Slide 21 of 38 Copyright Pearson Prentice Hall Individual chromosomes Anaphase Mitosis Anaphase

End Show 10-2 Cell Division Slide 22 of 38 Copyright Pearson Prentice Hall Mitosis Anaphase The sister chromatids separate into individual chromosomes. Individual chromosomes

End Show 10-2 Cell Division Slide 23 of 38 Copyright Pearson Prentice Hall Nuclear envelope reforming Telophase Mitosis Telophase

End Show 10-2 Cell Division Slide 24 of 38 Copyright Pearson Prentice Hall Mitosis Telophase Chromosomes gather at opposite ends of the cell and lose their distinct shape. Nuclear envelopes form.

End Show 10-2 Cell Division Slide 25 of 38 Copyright Pearson Prentice Hall PROPHASEMETAPHASE ANAPHASETELOPHASE

End Show 10-2 Cell Division Slide 26 of 38 Copyright Pearson Prentice Hall Cytokinesis

End Show 10-2 Cell Division Slide 27 of 38 Copyright Pearson Prentice Hall Cytokinesis Cytokenisis – When the two daughter cells separate after mitosis During cytokinesis, the cytoplasm pinches in half in an animal cell. Each daughter cell has an identical set of chromosomes.

End Show 10-2 Cell Division Slide 28 of 38 REMEMBER! I Interphase P Prophase M Metaphase A Anaphase T Telophase C Cytokinesis IPMATC I Pray More At The Church I Punched My Art Teacher’s Cat

End Show 10-2 Cell Division Slide 29 of 38 Copyright Pearson Prentice Hall Cytokinesis in Plants In plants, a structure known as the cell plate forms midway between the divided nuclei. The cell plate gradually develops into a cell wall. Cell wall Cell plate

End Show Slide 30 of 38 Copyright Pearson Prentice Hall 10-2 The series of events that cells go through as they grow and divide is called a.the cell cycle. b.mitosis. c.interphase. d.cytokinesis.

End Show Slide 31 of 38 Copyright Pearson Prentice Hall

End Show Slide 32 of 38 Copyright Pearson Prentice Hall mitosis rap Mitosis Song

End Show Slide 33 of 38 Copyright Pearson Prentice Hall 10-2 The phase of mitosis during which the chromosomes line up across the center of the cell is a.prophase. b.metaphase. c.anaphase. d.telophase.

End Show Slide 34 of 38 Copyright Pearson Prentice Hall 10-2 Cytokinesis usually occurs a.at the same time as telophase. b.after telophase. c.during interphase. d.during anaphase

End Show Slide 35 of 38 Copyright Pearson Prentice Hall 10-2 DNA replication takes place during the a.S phase of the cell cycle. b.G 1 phase of the cell cycle. c.G 2 phase of the cell cycle. d.M phase of the cell cycle.

End Show Slide 36 of 38 Copyright Pearson Prentice Hall 10-2 During mitosis, “sister” chromatids separate from one another during a.telophase. b.interphase. c.anaphase. d.metaphase.