PDF-The Cell Cycle

CH 12 In unicellular organisms division of one cell reproduces the entire organism Multicellular organisms depend on cell division for Development from a fertilized cell Growth Repair Cell division. Denition :Anr-cycleisdenotedby(i1i2:::ir):Example :11=(1)1cycle1212=(1)1cycle1221=(12)2cycle123321=(13)2cycle123231=(123)3cycle12344312=(1423)4cycle1234535421=(13425)5cycle12345 Unit 5. Welcome Back! . Musical Chairs. TODAY:. Notes on Cell Cycle. Become medical school students on oncology . rotation. Homework for next time: Watch Bozeman video on cell cycle, mitosis and meiosis. There *may* be a quiz.. A Chromosome and Sister Chromatids. Key Points About Chromosome Structure. A . chromosome consists of DNA that is wrapped around proteins (. histones. ) and condensed. Each . histone. and the DNA wrapped around it make up a . Why do cells need to divide?. Growth and development. You started as 1 cell and now you’re made up of roughly 40 TRILLION cells. Repair and regeneration of tissue. Reproduction. What happens when cells divide? . Chapter . 11 (p. 206-213) . Chapter . 12 (p.228-243). Chapter . 18.3 (p.373-377). G. 1. checkpoint. G. 1. G. 2. G. 2. checkpoint. M checkpoint. M. S. Control. system. Figure 12.15. External Regulators. You Must Know. Ways that the cell cycle is regulated.. Ways in which the normal cell cycle is disrupted to cause cancer. . Concept 9.3: The eukaryotic cell cycle is regulated by a molecular control system. 1. How many phases are in the cell cycle as shown in the diagram in Model 1?. Four.. 2. Starting at the starred cell, what is the order of the stages of a cell’s life?. G1, S, G2, M.. 3. During which phase does the size of the cell increase?. Ms. McCabe. Do Now Cells Quiz 20 Points. Skipping lines, number 1-10. Name, Date, Period. The title is: . Cell Quiz. Answer 1-5 in complete sentences. For 6-10, write the word . and. the matching definition. Identify and restate what the phases of the eukaryotic cell cycle are.. Restate what happens in each stage of the cycle.. Vocabulary. Cell . cycle. Interphase. Mitosis. Cytokinesis. Cells . Live in a Cycle. Phases of the cell cycle. Interphase. Mitotic Phase. Interphase. G1. - a cell grows and develops. S. - a cell continues to grow but copies its DNA. G2. - still growing but begins to store energy and get ready to divide. . During the cell cycle, a cell grows, prepares for division, and divides to form two identical daughter cells, each. of which then begins the cycle again.. The series of events that cells go through as they grow and divide.. 7/22/2009 Cells divide to increase their numbers through a process of mitosis, which results in two daughter cells with identical sets of chromosomes. As you grow from an infant to an adult, you pass Acknowledgement. I would like to express special thank of gratitude to our respected principal madam, Mrs. . Kuljit. . Kaur. , for giving us this unique opportunity to express ourselves in a creative way. It is the growth and division of single cell into daughter cells and duplication (replication).. In . prokaryotic cells, . the cell cycle occurs via process termed binary fission.. In . eukaryotic cells, .